Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

Mile-long cave system near Great Smoky Mountains.

A bizarre house filled with an astounding array of collections.

Tokyo’s only Ainu restaurant serves Indigenous food from northern Japan.

One of the largest collections of merchandise from the famous British sci-fi show can be found smack in the middle of Indiana.

This Portland shop is brimming with natural wonders, local art, and handmade goods fashioned from recycled materials.

Behind a modern brick exterior lies the oldest continuously-operating lunch-car diner in the United States.

This small museum is an eccentric shrine to boyhood in the 1960s.

250-year-old farm now features sculptures, a petting zoo and a hippy-bazaar.

Its unique collection details the history of the state's svelte railroads.

This 1,700-pound edible sculpture is way better than your average chocolate mousse.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

This store also houses a museum dedicated to the history of these small, historic community shops.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

The monument dedicated to Phineas Gage in the town where his accident happened.

Industrial ruin decimated this tiny New England company town in a fashion no one saw coming… and even fewer remember today.

A beautiful, creepy 19th-century castle stands incongruously in rural Vermont.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

A giant toy jack made of numerous welded-together fire hydrants.

According to the experts at the Guinness World's Record office, this is the longest candy counter in the world.

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

The world's largest public collection of PEZ memorabilia.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.