Locals spent years successfully fighting to save this beloved Brutalist behemoth from demolition.

The abandoned railway bridge stands hidden in the farmland of rural Cumbria.

A group of glacial erratic boulders are improbably balanced on white limestone pedestals.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

A crumbling hospital from the 1850s on Roosevelt Island.

This mouldering abandoned mental hospital was once a center for progressive healing.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

A former zoo turned public park, where visitors can hang out in the old animal cages.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

This stunning Connecticut mansion is actually just a one-room-deep hoax.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Overgrown ruins of a turn of the century island fort that sees very few visitors.

The hill that gave the Massachusett tribe, and later the state, its name.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

The world's largest piece of copyrighted artwork.

No one really knows how these old hobby horses got here, but the herd keeps growing.

An 80-year-old house built out of newspapers.

America's oldest archaeological site or a muddled case of wishful thinking.