A strange house built only at night, with rumored mystic inspiration.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

A trash dump made beautiful by nature's power.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

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

Elevated freight railway turned wildly successful urban park.

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

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

This giant spider sculpture made from the iconic car is one giant visual pun.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

Thousands of turbines whir at at the origin of North American wind power.

An alley covered with 20 years of bubble gum.

This nonsensical smiling boat shuttles passengers between two places they could've easily walked between.

A massive volcanic plug is now a protected area that hosts a number of bird species.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

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

Furniture tries to escape an abandoned building in San Francisco.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Where the writer penned his famous story about a jumping frog.

A popular tourist cave with a dark past.

The arch that celebrated the completion of the Lincoln and Victory highways.