An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

Mineral springs believed to hold therapeutic properties draw in visitors from all over.

A toxic lake near a volcanic caldera that is home to flamingos and other life.

All that's left of the quintessential "cabin in the woods."

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

An Italian hillside ghost town.

Cliffside houses provide a spectacular view from their perch above the valley.

The end of times arrives, at least for the fish in the O.C. Fisher Reservoir.

An abandoned movie set in the desert of West Texas.

A master plumber has turned his love of art and toilets into a folk museum that's not taking the piss.

Beer lover's can-covered house.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

A dwindling menagerie of anthropomorphic oil derrick animals still dot the barren California landscape.

If there is one thing you don't want to be in Sweden during Christmas, it's a Yule Goat.

Roman ruins top white travertine terraces formed by ancient hot springs.

This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

Geothermal waterfalls in Tuscany.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

A giant gorilla made of used car tires used to sit sentinel over a Helsinki college campus.