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

The remains of a ruined mansion memorialize the 1906 earthquake.

A modern mechanical planetary system, part of a 10,000 year clock.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A museum befitting the city responsible for supplying the majority of the world's LSD.

A huge musical instrument played by the ocean.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This plaque in one of London's oldest public hospitals commemorates the first meeting of two of Britain's most famous literary heroes: Sherlock Holmes and Dr. Watson.

A cult following celebrates the legend that belies this curious podiatrists' office sign which has worked its way into song, literature, animation, and the visual arts.

A 1950s Googie burger stand is now a Los Angeles landmark.

The words of the neighborhood's most famous poets adorn four concrete walls.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

Pay your respects to a folk-punk legend.

One of the world's longest murals depicts the history of diversity in Los Angeles.

The so-called "Statue of Liberty of Los Angeles" is on a one mutant mission to keep L.A. weird.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

World's oldest operating science fiction and fantasy club, once home to Ray Bradbury and L. Ron Hubbard.

A multimedia experience that chronicles the atrocities of racism.

The neighborhood shop is a sort of tiny cactus museum full of exotic specimens you can take home.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.