The oldest church in Iceland is one of the few to feature ornate decoration.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

This former abandoned hospital, a complex of stunning 19th century buildings, once housed 2,000 psychiatric patients.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

Don't blink or you'll miss it.

A sculpture of a salmon swimming through a brick building.

This golf ball–shaped former desert real estate office now houses a UFO museum.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

A remarkable lava formation encloses a line of Buddhist statues that can't be accurately counted, according to local mythology.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

Tiny horses tethered to antique rings are scattered around the city.

A local scoured more than 1,000 acres for stone to create his masterpiece.

This spectacular track has run continuously since 1882.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

The fading, forgotten remains of a once bright and booming factory.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

This ghost town was once a cult-like religious utopian settlement.