This Oregon farm is dedicated to teaching people the professional art of tree climbing.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

An institution that preserves the history of institutionalization.

Delightful disarray of found objects and clutter.

Treehouse motel and treehouse-building school.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

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

An emporium for the weird, creepy, rare, and just plain gross.

Private collection of art inspired by cabinets of curiosity.

Hollowed out cedar log tubs set in an ancient towering forest.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This historic Idaho island is home to a strange timeshare museum, a homemade mini-golf course, and an outhouse named Aunt Fanny.

A black cottonwood gets a second life as a home for books.

Natural rock water slides hidden in the remote forests of northern Idaho.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

A few dilapidated structures are all that remain of this deserted former silver mining town.

Jail from the 19th century that was built by inmates.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

This scrap yard doubles as a naive art gallery full of found art and farm animals.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

The lost ruins of the forgotten ferry lie hidden beneath the silt.

This old selenite mine is dotted with tiny crystals that make it shimmer like it's covered in glitter.

This curiosity shop contains a museum filled with bizarre, unique objects.

A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.