An abandoned boat that's been stranded mysteriously for decades.

This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

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

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

These unusual houses look like giant boats that washed ashore on a residential street.

A plaque and memorabilia collection mark where A&W got its start.

This giant temperature attraction created some giant electric bills.

A shining, cold, black organ lies in San Francisco's financial district.

A monumental cross hides in the trees in Golden Gate Park.

A shockingly detailed small scale recreation of the temples of Abu Simbel.

Art in the form of a winding, man made crack in stone.

This "synagogue" is not what it seems to be.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

This bizarre hotel on historic Route 66 has been plagued by rumors of paranormal activity.

A black and white mural stands out from its psychedelic surroundings.

A statue commemorate Tommie Smith and John Carlos's brave protest at the 1968 Olympics, a watershed moment for civil rights.

The Giant Lemon of Lemon Grove.

This historic tower in the California desert promises visitors a "vortex of good vibes".

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

One of the largest helium balloons in the U.S. is a 112-foot ginormous orange.

An ode to the friendship between four Pacific Rim countries.

Once the gateway to the utopian dream-village of a Civil War embalmer.

A giant knight, sex education, date shakes, and Jesus coexist happily in this Coachella Valley desert oasis.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.