The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

This golf ball–shaped former desert real estate office now houses a UFO museum.

An homage to everyone's favorite prehistoric cartoon family.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

An artificial crater field that trained astronauts for lunar exploration.

A reproduction of earth's many biomes.

A spiritual vortex among the red rocks in Sedona.

A Wild West jailhouse that slid down the mountainside.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Rumor had it that these concrete crosses scattered across the Arizona scrubland helped align spy satellites. (They didn’t.)

An urban laboratory.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

The American rainmaker and a burst dam.

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

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

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."