The site of the Wellington avalanche, one of the America's worst railroad disasters.

Abandoned waterpark turned counter-culture mecca.

An eerie, derelict amusement park in Berlin.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

One of the world's longest murals depicts the history of diversity in Los Angeles.

The last of its kind in the country.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

World War II-era Nazi compound nestled in the Santa Monica hills.

Resting place of Hollywood's immortals is also site of summer film screenings.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

A magical place that lets you play in and explore the world of Studio Ghibli.

A crumbling hospital from the 1850s on Roosevelt Island.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

4,000 monkeys used for medical testing on an island off of South Carolina.

A collection of colorful dinosaurs hidden in an actual rainforest.

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

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

This multi-story wooden waterpark offers homemade thrills.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.