A living archive of urban activism and space reclaimed.

This former crime corner has been turned into an eclectic community center.

The largest source of fossilized insects anywhere.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

At 207 feet, one of the world's longest continuous escalators.

The site of the climactic scene from the classic horror film is now a historic landmark.

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

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

A huge musical instrument played by the ocean.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

27-room home built with the fortune of a sugar magnate.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

A world-class observatory in the California desert.

A second generation sun-powered marvel lights up the night.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

A giant donut stands as a popular symbol of Los Angeles iconography.

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

World-famous, Pink's still manages to keep its prized cult fetish status.

Gift shop offering toe tags and chalk body beach towels tucked into a coroner's office.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

A giant Troll lurks under one of Seattle's oldest bridges.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

Strange red rock formations that have been attributed to a higher power for hundreds of years.