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

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

An alley covered with 20 years of bubble gum.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The maritime museum that boasts the largest nautical library in the western hemisphere.

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.

Lone survivor from Custer's Last Stand forever preserved.

This former mining town was named the most toxic town in America.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

The second oldest continuously operating bar in Louisiana.

A snapshot of the city's fascinating voodoo culture.

The only surviving prototype of Buckminster Fuller's revolutionary car.

A massive volcanic plug is now a protected area that hosts a number of bird species.

A hotel and restaurant serving as the mecca of kitsch.

It houses the remains of a 17th-century version of the Titanic.

A little sculpture with a large wardrobe.

Brussels' favorite peeing boy has a sister.