A restaurant on Staten Island showcases a different grandmother’s cooking every night.

A whimsical village of unique treehouses resides in a Washington forest.

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

This charmingly homemade amusement park has been growing for 40 years.

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

Couple's personal collection of pinball machines turned public pinball museum.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

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

The "Seinfeld" diner.

A Bibliophile's Dream.

The magic's in the hole!

The world's longest known cave system.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

A museum dedicated to the alleged Roswell Incident.

One person's lost luggage is another person's treasure.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Become a prohibition rebel.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Where beautiful signs live on forever.