An electrifying collection of gadgets and literature from the 16th through 20th centuries.

World's largest cave was only discovered in 1991, and now offers tours to the public.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

The world's largest maze is a nature park with nearly 200 decision points.

An institution dedicated to curiosity, logic, riddles, and Mongolia's long history of puzzles.

A museum within a museum, devoted to history's most questionable medical devices.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

A bizarre house filled with an astounding array of collections.

A man's home is his castle.

If you want to build a better mousetrap, first consult this small museum's massive collection of trapping tools.

A bookstore dedicated to the intersection of comedy and art.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

America’s oldest community theater, this Boston club has been in operation since 1877.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

Beautiful steampunk ghosts of early Massachusetts.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

This museum remembers an apocalyptic cult that became more famous for baseball than religious radicalism.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

DIY collection of eclectic holdings.

One part antique store, one part curiosities hodge-podge.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Continuing the tradition of the dime museum in style.

This lab's maddening silence is good for business but bad for sanity.