About 80% of all U.S. avocados are descendants of Rudolph Hass's glorious tree.

A relic from a forgotten bakery chain still spins atop a diner.

An unexpected and peaceful oasis on a hillside.

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

This enormous World War II relic is one of the largest wooden structures in the world.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

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

Tucked away behind an unassuming set of shops is a must-see series of stunning murals.

What began as an illegal art installation has become a symbol for unity, ocean awareness, and coastline preservation.

Abandoned hotel with adjacent lake and golf course.

Etched into a dry lake bed, this massive directional indicator is accurate without magnets.

These colossal desert barcodes have been fine-tuning spy satellites for decades.

A large sculptural artwork and garden in Escondido, California.

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

Decommissioned experimental solar facilities that pioneered solar energy technology.

The cluster of boulders near Fort Irwin is covered in military insignia.

Along a California highway is a kind of Jurassic Park made of metal.

A 250 million-year-old rock formation has earned a rather unique nickname.

This simple highway curve has become a comedic pilgrimage site.

A giant desert bird that once swung music fans at Coachella now has a home in a nearby traffic circle.

Visitors to this public park will also find the ruins of an old western fort.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

A giant open-air sculpture made of over 200 full-sized boats.