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

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

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

A museum dedicated to the alleged Roswell Incident.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Albuquerque found the perfect use for tumbleweeds at Christmastime.

The first piece of public art dedicated to LGBT rights.

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The headquarters of the famous Yale society.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

A very classy 1920s-era bar right in Grand Central Station.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

This nostalgic blast from the grooming past is also a working barbershop.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.