OLD POSTCARDS AND THE NEW YORK TRANSFORMATION

These days we have Instagram filters and Facebook check-ins to induce envy in our friends. But before social media came along, the postcard was the ultimate holiday brag. To celebrate World Post Day on October 9, here is one of the world's largest postcard collections. Swiss entrepreneur Adolf Feller began collecting the souvenirs in 1899 during his travels for his electrical goods business. The collection contains more than 54,000 monochrome and colour photographs from 140 countries, including New Zealand, Japan, Uganda, and from cities and towns around Switzerland. Friends and family contributed to the collection, which Feller left to his daughter Elizabeth after his death in 1931. Some of the postcards were collated in a book published in 2011, 'The World in Pocket-Size Format: The Adolf Feller Postcard Collection,' by Monika Burri. The tradition of sending postcards to loved ones back home is steadily declining. Fewer than one billion are now sent each year, compared with more than 4.5 billion in 1951. +18 Picture perfect: To celebrate World Post Day, one of the world's largest postcard collections, by Adolf Feller, has been unveiled +18 Collector: Adolf Feller began collecting the souvenirs at the end of the 19th century during his travels for his electrical goods business +18 World traveller: The archives include postcards from Canada, Japan, New Zealand, and Uganda (pictured) +18 +18 Cultural difference: Feller's travels took him to Japan (left) and Bern (right) +18 Souvenirs: Feller travelled far and wide for work, always picking up a postcard in each destination, like this one in Zurich +18 Picturesque: Adolf's friends and family contributed to the collection with postcards such as this from Mount Etzel +18 Modern: As his family continued collecting, colour photographs, such as this one of New Zealand, appear in the collection +18 Scenic: This postcard depicts the mountains of Switzerland labelled with their respective elevations +18 Wish you were here! Feller collected this postcard of Menzingen, in Zug, Switzerland +18 Passed on: The collection was left to Feller's daughter Elizabeth after his death in 1931 +18 Artistic: This card features an oil painting of Etzel mountain +18 +18 Natural beauty: The postcards depict many beautiful scenes +18 High on a hill: A postcard featuring Tourbillon Castle, in Sion, Switzerland +18 Photographic: The snap is an overhead general view of  Ardon in Switzerland +18 +18 People and places: Adolf's collection isn't just landscapes - his souvenirs depict architecture, different cultures and events Dating back to the late 19th century and early 20th century – and now compiled in a book entitled An American Odyssey – they show the people and places of the New World, documenting Native Americans, African Americans, immigrants, cowboys and gold rushers. The photographs were taken between 1888 and 1924 and were made into postcards celebrating cities, landscapes and everyday life across the country. +15 Images such as this of Zuni Pueblo Indians carrying out a Rain Dance in New Mexico were produced using a photochrom process +15 Sunset from the Battery, New York: These postcards, dating back to the late 19th century and early 20th century and collected in a new book entitled An American Odyssey, show the people and places of the New World +15 Homestake Mine, South Dakota: These particular images were produced by the Detroit Photographic Company at the turn of the century Many of the images were produced using a photochrom process, taking black and white negatives and filling them with color by transferring them onto lithographic printing stones. Another process used was photostint, a way of tinting black and white and sepia images which was used by companies - including what was then known as the London Daily Mail - to print color postcards of important events, such as scenes from the First World War. These processes predated the autochrome by nearly 20 years and offered people the very first color photographs of The United States. Suddenly, the continent's colors were available for all to see. The rich ochres and browns of the Grand Canyon, the dazzle of Atlantic City, became a visual delight not only for eyewitnesses, but for Americans far and wide. +15 The Big Apple: Mulberry Street, the main thoroughfare in Manhattan, is brought to life with the photochrom process, showing the varying ethnicity of New Yorkers and a glimpse at their everyday lives +15 A Mississippi landing, Vicksburg: The colorful photochroms started out as glass negatives such as this +15 Laundry day: This unusual picture shows a Monday in New York City, when the streets were filled with clean washing being aired among the buildings +15 Feats of engineering: The Gerogetown Loop over Clear Creek Canyon in Colorado was hugely important to the nearby gold and silver mines at the start of the 20th century These spectacular postcards are from a private collection amassed by graphic designer, photographer, and collector Marc Walter. He specializes in vintage travel photographs and has one of the world's largest collections. These particular images were produced by the Detroit Photographic Company at the turn of the century, combining landscapes with human interest images for city dwellers, immigrants and even gold rushers and the last Wild West cowboys. The 612-page hardback book, published by Taschen, is a celebration of America and is considered a journey through its later 19th and early 20th-century landscapes. Photos include a busy city scene on Mulberry Street in New York, while another contrasts dramatically, capturing the rural life of a Seminole Indian family sailing in their dugout canoes in Florida. +15 Rainbow effect: The Grand Canyon is shown in all its glory with greens, rich reds and purples depicted by the photochrom technique +15 +15 'Three Graces', Yosemite National Park, California, left. The 612-page hardback book, published by Taschen, is a celebration of America and is considered a journey through its later 19th and early 20th-century landscapes, right +15 On track: Transport is a dominant theme throughout the images, showing America at the cutting edge of technology Magnolia Plantation, on the Ashely River in Charleston, is brought to life with the application of color to the image, while the Grand Canyon is also shown shimmering with color. Transport is also a leading theme in the postcards, featuring spectacular train journeys crossing Clear Creek Canyon, on Georgetown Loop in Colorado and the Mount Lowe Railway, on the circular bridge in California. Tourists can still ride on the Georgetown Loop railways, experiencing what life was like during the gold rush era, when everyone was trying to make their fortune. And spectacular National Parks such as the Grand Canyon still draw crowds, with millions of visitors every year. +15 Traditions: Members of the Seminole Tribe in Florida - whose history dates back to the early 1500s - are depicted in the dugout canoes in their elegant dress +15 Gold rush town: A glorious panorama shows the Californian city of San Francisco when it was still a relatively small settlement +15 Southern life: A magnolia plantation is shown in bloom on the edge of the Ashley River in Charleston with a local woman stood looking out over the water +15 These spectacular postcards are from a private collection amassed by graphic designer, photographer, and collector Marc Walter. He specializes in vintage travel photographs and has one of the world's largest collections London, Tokyo and Singapore - now all sprawling metropolises we know well from postcards, but would we even recognise them if we saw them 100 years ago? After long periods of slow development, the last century has seen a staggering rate of change in the world's major strongholds - skyscrapers shooting up, urban housing spreading ever outwards and a cataclysm of bright lights.  While burgeoning cities including Sydney have blossomed with iconic skylines punctuated by architectural marvels such as the Opera House, other places including Paris and Athens have seen a less dramatic change in their skylines.   What's remarkable about them is how they've grown, but managed to keep their character of old.  Here MailOnline Travel rounds up aerial photographs that chart the metamorphosis of famous cities around the world. +28 The city of Keijo, before it became Seoul - the city we know it to be today - in South Korea, seen here in an aerial photo taken circa 1900 +28 The mountains in the background are still visible in Seoul 115 years later, the only recognisable landmark of a city which looks brand new +28 A snapshot of Tokyo near-flattened by American bombing, which was carried out on the evening of March 9, 1945, during World War II +28 As we can see today, an astounding number of skyscrapers emerged from the rubble following the devastating attack +28 Boats on the Huangpu River in Shanghai, China, in a photo taken circa 1920 +28 The skyline couldn't be more different now, with the arrival of several strikingly modern buildings such as the Oriental Pearl (left) +28 A view from over the Marina and the Presidio of the Golden Gate Bridge under construction in San Francisco, California, taken in 1935 +28 Now a world-famous landmark, most San Franciscans have never known their city without the three-mile-long structure +28 Here's what the Singapore river looked like circa 1900, strewn with traditional boats and bordering three or four storey homes +28 Gone are the clusters of boats, replaced with bright lights and high-rise buildings making Singapore the buzzing metropolis it is now +28 A view of Rio de Janeiro, Brazil, taken from a Zeppelin plane in 1930, before the iconic Christ the Redeemer statue held everyone's gaze +28 Taken from the same angle an urban sprawl has built up around the beach front. Since 1931 the statue of Christ the Redeemer has appeared to the left of this skyline in Corcovado mountain +28 This was once the face of Sydney's Darling Harbour and Pyrmont Wharves, seen here in a photo taken on August 21, 1937 +28 It now boasts the Sydney Harbour opera house (centre) in this snap taken last year from a helicopter by photographer James Morgan +28 This photo portrays the railway yards and Flinders Street looking west at The Yarra in Melbourne, Australia, circa 1900 +28 Melbourne City view overlooking Flinders St Station taken from the Sheraton Hotel in 2004 - a very different scene +28 Berlin, in a photograph circa 1935, depicting the now-thriving Potsdamer Platz, Leipzig Platz, Vosstrasse and Winter Platz +28 Now it's awash with bright lights and has certainly gained some lofty buildings, but most of its structural layout remains true +28 Before Canary Wharf was developed, this part of East London looked industrial and sparse - seen here in a photo from June 1986 +28 Canary Wharf is now a major business district and today enjoys a status as one of the United Kingdom's two main financial centres +28 A view from the Acropolis in Athens, Greece, showing the Royal Palace and overlooked by the mighty Mount Lycabettus - date unknown +28 It's now a densely populated city which almost seems intent on creeping up the mountain, but it's still recognisable from its old days +28 A panorama circa 1865 of the port of Hong Kong seen from on high in the public gardens +28 Things are looking a lot more colourful in the bustling city these days, as this picture taken in Victoria Harbour shows +28  The Eiffel Tower has dominated the skyline of Paris since it was errected in 1889, as seen from a hot air balloon - date unknown +28 Today, it is still the city's pinnacle, despite the cluster of high-rise buildings inching their way skywards in the foreground +28 A view of the Royal Palace, which dominates the scene in Bangkok, Thailand, taken circa 1900 +28 The spires of the palace can still be seen, but they are now dwarfed by their high-rise neighbours in this recent photo of Bangkok

These days, holidays are all about selfie sticks, all-you-can-eat buffets and fishbowl cocktails, but 100 years ago travelling abroad was a much more simple affair. Back in the early 1900s, when a journey to Egypt took 10 days instead of five hours on a budget airline, the middle classes were just getting the hang of adventured abroad. Now a series of images from this era have emerged - with comically stoic pictures of the Victorians and Edwardians posing for the camera in exotic locations. The black and white images show how the fashions of the time had yet to adapt to the active nature of the trips. In one picture, women on a holiday in Hastings attempt to rock climb in midi skirts and heels, while in another Victorian tourists climb to the summit of Mount Vesuvius in corsets and bustles. Revealing just how much has changed, one snap shows a group of tourists wearing their best clothes as they pose in front of the Sphinx in Egypt. +13 Local porters accompany Victorian tourists to the summit of Mount Vesuvius. One of them is being carried in an open, sedan type chair +13 Holidaymakers in 1938 on a trip to Hastings, East Sussex, enjoy rock-climbing in attire more suited to the office +13 In the days before tourists were banned from climbing the pyramids, a group pf Egyptians clambering up the rock slabs +13 Bathing machines shelter shy holidaymakers from prying eyes at St-Leonards-on-Sea, East Sussex, in 1895 Typical Cornish seaside scene from the early 20th century +13 Holidaymakers listening to music at teatime outside their tent on the Chiltern Hills in southern England in 1929 +13 Three Powers elephants astound the holidaymakers at Skegness by playing a game of cricket in 1936 +13 A group of holidaymakers arrive at Paddington Station in London in 1910, for a trip to the seaside +13 British tourists pose in front of the Sphinx in Giza, Egypt in fashionable clothing from the 1880s +13 Porters helping holidaymakers with their luggage at Waterloo Station, London, in 1913, just a year before the start of World War One +13 This picture from the Statue of Liberty's torch shows a group of people leaning out of the head of the Statue in New York +13 Victorian tourists finish a tour of a salt mine in Obersalzberg, Berchtesgaden, on a special train +13 A group of tourists in Oberammergau waiting to go skiing in Bavaria. In 1928, skiing attire looked nothing like the uniforms of today +13 A male tourist wearing pith helmet poses with a topless local woman in Port Moresby, Papua New Guinea, in the 1920s These vintage photographs capture a lost New York City, where streetcars barreled down Third Avenue, the Empire State Building was the tallest in town - and five cents could get you a a bag of fresh-roasted peanuts. Taken by legendary photographer Todd Webb in 1946, the collection of black and white images show the bustling docks of Manhattan, the skyline prior to its ever-rising glass-walled skyscrapers - and the people who called the city home. Webb was about 40 years old when he set out on foot around the city with his camera, having just returned from a posting as a Naval Photographer in the Second World War. Daily Mail online sent out photographer Edwin Torres to replicate present day photos of Todd Webb - and revealed where the Big Apple has undergone incredible transformation in the past 70 years - and where it has stayed, magically, unchanged. Scroll down for slides ‹ SLIDE ME › ‹ SLIDE ME › On the docks: The East River docks were once thronged with trade ships like in this scene from the Fulton Fish Market Wharf. Today, the fish market is gone and South Street Seaport abandoned while work on a $1.5billion redevelopment project has stalled�� ‹ SLIDE ME › Right, the view of downtown Manhattan from the Empire State Building in 1946 and, left, the view in 2015 from the Empire State Building. Today's viewpoint is at a slightly higher angle as Todd photographed from the 49th floor which is now office space. The current observatory is on the 86th floor ‹ SLIDE ME › The intersection at Pike Street and Madison Street, looking south towards the Manhattan Bridge. Tenement housing from the 1940s has now been replaced with a large public housing complex As well as the iconic sights and architecture of the metropolis, Webb's images also took in locals around his Harlem neighborhood, and working folk in downtown Manhattan around Chinatown and the Battery Park. The images have been dusted off from the archives and published in a limited-edition collection,21st Editions. According to photography experts, Webb, who won a Guggenheim Fellowship in 1955, was notable in getting to know the subjects of his portraits before shooting - sometimes spending days talking to people before taking a picture. In an introduction to the images, Harvard professor John Stauffer wrote how Webb was also an unusual photographer for his time, taking an interest in picturing African-Americans and interracial friendships. Although 1946 was blighted by the death of his mentor, photographer and modern art promoter Alfred Stieglitz, Webb - who died in 2000 - remembered it as one of best and most productive years. ‹ SLIDE ME › Right, traders on Suffolk Street near Chinatown in downtown Manhattan. Although the store name in the 1946 picture is not visible, the 2015 shot reveals that Streit's has supposedly been open since 1925. And while transportation may have moved on from carts to forklifts, the street remains one-way, 70 years later ‹ SLIDE ME › Right, the intersection at 2nd Avenue and East 50th Street shows the Chrysler Building, not yet surrounded by other Midtown high rises. Left, the Chrysler is obscured today by multiple tower blocks and the traffic now flows in one direction downtown +21 Old smokey days: This collection of photographs by Todd Webb has been republished - the above showing the New York City skyline in 1946, when the Empire State Building (right) and Chrysler building (center left) were still the tallest two structures in the metropolis +21 The photographer found these boys on a street in Harlem, and asked them to pose for him. Todd Webb often spent days coaxing subjects to be part of his iconic images +21 Pals: This photograph, called 123rd Street (Boys with Toy Gun) shows a black child and white friends playing in Harlem. Webb's writings show how he despised racism - describing seeing 'Whites Only' signs on a visit to the segregated South 'hard to take' +21 This photo, called 'The Circle,' LaSalle at Amsterdam, shows a group of black and white children playing together around a burst waterpipe +21 +21 Harlem scenes: These photographs a hat store in Harlem's 125th street, and the nearby offices of The People's Voice, a weekly black newspaper, with a local standing outside. The paper had just moved offices +21 Working man: Taken close to Battery Park in downtown Manhtattan, this image shows a local tradesman selling roasted peanuts on the street for five cents a bag +21 Fine motor: This image shows the car of Lamar Perkins, a prominent Harlem citizen and New York state's assistant attorney general +21 To Brooklyn: Todd Webb took this photograph the first time he walked over the Brooklyn Bridge - with only enough film for six frames. When he returned the next day with more, officials were enforcing a photography ban - so he had to turn back +21 The Brooklyn Bridge today looks much the same - but the still wooden path has been marked out for cyclists and walkers +21 +21 The images show yesteryear NYC transportation, including the image to the left of the now-demolished Third Avenue El train metro line, with a street car running underneath. To the right, a photograph taken at the interaction of Second Avenue and 50th Street shows the Chrysler Building standing tall, not yet surrounded by other midtown high-rises +21 The intersection of Second Avenue and East 50th Street (which shows the same scene as above, right). The Chrysler building is now obscured by apartment blocks +21 From the docks: The photographs show how Manhattan's ports and piers still thronged with trade ships. This is the scene from the Fulton Fish Market Wharf +21 Today, the fish market is gone and South Street Seaport abandoned while work on a $1.5billion redevelopment project has stalled +21 Famous: This image, published in Fortune magazine, shows the view of downtown Manhattan from the Empire State Building - then the highest view in the city. The same vista would now be dominated by the World Trade Center's Freedom Tower +21 Today's viewpoint from the Empire State Building is at a slightly higher angle as Todd photographed from the 49th floor which is now office space. The current observatory is on the 86th floor +21 Towering: This photograph, taken at the intersection of Madison Street and Pike Street, shows the view south towards the Manhattan Bridge +21 The intersection at Pike Street and Madison Street, looking south towards the Manhattan Bridge. Tenement housing from the 1940s has now been replaced with a large public housing complex +21 Commerce: This image shows traders on Suffolk Street, near Manhattan's Chinatown. There are street markets, pushcarts parked end to end in front of the endless rows of small stores +21 This is the same location from Todd Webb's 1946 photograph on Suffolk and Hester streets where shoppers purchase goods from a street cart in front of the corner store

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