The most confusing clock in New York.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

Remnants of a storybook amusement park hidden behind a strip mall.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Concrete strongholds stand guard over the Golden Gate.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

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

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

San Francisco's newly reopened hands-on science museum.

Floating man-made island and upscale restaurant.

A walk through the historic city center, under the streets of Seattle.

A wall of chewing gum moonlights as collective art.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Furniture tries to escape an abandoned building in San Francisco.

The magic's in the hole!

Abandoned rock quarry now a haven for mountain bikers and hikers.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

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