A creepy steel gremlin has protected the Bay Bridge since 1989.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Only hotel where you can legally launder money.

This 19th-century church is now a popular roller rink.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

This giant head is all that remains of a once proud statue that survived an earthquake but not a fall off of a wagon.

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

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

Two pillars set 10 paces apart commemorate the "last notable American duel."

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A library and museum dedicated to typography.

The Flatiron Building's storied West Coast cousin is a lot more into religion.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

This (occupied) house is 10 feet wide and full of spite.

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

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

At this California chicken ranch, four bucks will get you 18 eggs and a chorus of dancing animatronic poultry.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.