An underwater city for the dead.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

This museum honors the composer of “Swannee Ribber.”

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

An abandoned cyanide mill is now a haunting magnet for graffiti and illegal parties.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.

If you want to take a peek at Area 51, this is legally as close as you're going to get.

Just below the surface, shrimp are producing temperatures hotter than the sun.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

Try not to get slimed in Tribeca.

A bit of retro transportation flair preserved in the world's largest department store.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

One man's quest for the ultimate road trip vehicle.

The only runway directly into the magic kingdom has been closed since 1972, but it still sings to you if you drive fast enough.