From Manhattan and Brooklyn's trendiest neighborhoods to the far-flung edges of theouter boroughs, Will Ellis has spent the last three years photographing and researching the lost and lonely corners of the United States' most populous city. His photo book Abandoned NYC is packed with 150 color images of sixteen of New York's most beautiful and mysterious abandoned spaces, paired with detailed essays on the fascinating history of these forgotten sites. Here: Letchworth Village is located just an hour's drive from NYC in Thiells, NY. It was founded in 1912 to house the city's developmentally disabled as a ”state institution for the epileptic and feeble-minded”. (Photo by Will Ellis)

Nina Leen, one of the first female photographers to work for Life, took pictures for the magazine from 1940 to 1972. In the mid-1940s, her essay, “City Dogs”, featured actors and artists with their pets on the streets of New York City. In late-March, Daniel Cooney Fine Art in New York City, is opening a solo exhibition of Leen’s work that features images from that essay and others. Here: author Fannie Hurst clad in mink coat, enjoying the jumping antics of her Yorkshire terrier Orphan Annie on the street. (Photo by Nina Leen/Pix Inc./The LIFE Picture Collection/Getty Images)

A new book of photos by legendary photographer Weegee shows what industrialized, pre-gentrified New York looked like in the mid-20th century, before the city was crammed with towers and billboards. Here: this combination shows the 1945 photo “Derelict sleeping on the sidewalk outside police headquarters” by Weegee, provided by the International Center of Photography in New York, and a woman walking on the same spot on Wednesday, March 18, 2015. (Photo by AP Photo/Copyright Weegee/The International Center of Photography, Mark Lennihan)

A building burns after an explosion on 2nd Avenue on March 26, 2015 in New York City. The seven alarm fire drew firefighters from across the city. A number of injuries have been reported. (Photo by Andrew Burton/Getty Images)

People take part in the Cupid's Undie Run in the Manhattan borough of New York February 7, 2015. The run, held to raise funds to combat children's tumors, sees runners in their underwear partying and running along the West Side Highway. (Photo by Carlo Allegri/Reuters)

New York City policemen tangled with demonstrators at a subway station on the opening day of the New York World's Fair, April 22, 1964. Youths attempted to stall the train, which was headed from the city to the fairgrounds, as a form of protest on behalf of civil rights for blacks. (Photo by Charles Gorry/AP Photo)

Lindsay Mann (L) and Anabella Mowbray kiss as they take photos of themselves laying in the confetti on 7th Avenue in Times Square on New Year's Eve in New York January 1, 2015. (Photo by Carlo Allegri/Reuters)

A man dressed up as the Statue of Liberty walks in front of a new digital advertising screen in Times Square, New York, November 18, 2014. According to local media the screen is a full block long, 8 stories tall, is lit with 24 million LED pixels and has a higher resolution than most TV sets. The advertising rate is reported at $2.5 million USD for a four-week run making it one of the most expensive outdoor advertising spaces in the world. (Photo by Carlo Allegri/Reuters)