The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Site of the first pathological and bacteriological research facility in the United States.

A crumbling hospital from the 1850s on Roosevelt Island.

One of only two commuter aerial tramways in the United States.

A sculptural commentary on capitalism pokes up from the East River.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

An art installation commemorates journalist Nellie Bly's undercover reporting inside a New York asylum.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A menagerie of concrete animals brought together from across New York City's parks.

No monkeying around, this fountain was really named after the classic sci-fi film.

Amid the clacking of snooker balls, diners tuck into fiery Bhutanese fare.

An everyday Jackson Heights bodega conceals a Mexican seafood paradise.

This mysterious marker puzzles pedestrians and infuriates geographers.

Holding the most bodies of any cemetery in the United States.

Behind these delicious arepas lies a true New York success story.

A former Tibetan monk made a name for himself selling some of the best beef momos in New York.

A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

An easy to overlook storefront hides some of the most authentic and regionally diverse Chinese food in New York.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

This pristine World War II airfield gives a comprehensive look at atomic development and aviation history.

A perfectly preserved small-town pharmacy and soda fountain that opened in the early 20th century and closed in the 1980s.