The magic's in the hole!

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

One of 100 “Whaling Wall" murals painted in 13 different countries by a renowned marine life artist.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

Dim sum, served in a grand old theater.

255 feet of suds, scrubbers, and blow dryers.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The most confusing clock in New York.

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

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

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

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

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

This quirky hot springs town known to locals as "T or C" was named after a radio show.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

The second largest roadrunner in the world stands 11 feet tall in his West Texas town.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

The lowest point in the state of Illinois, at the confluence of the Mississippi and Ohio rivers.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.