One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

A meditative space out of a fantasy story.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

The "Seinfeld" diner.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

The second oldest continuously operating bar in Louisiana.

A historic neighborhood church is reborn as a psychedelic arts collective.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

The only rotating bar in New Orleans has been slowly spinning since 1949.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

These eerie outliers of the lightning bug family glow a mysterious blue color.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Ride the subways of yesteryear.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

World-famous, Pink's still manages to keep its prized cult fetish status.

A replica that won't float away.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

A hotel and restaurant serving as the mecca of kitsch.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

The world's longest known cave system.