A lonely monument to the original Silicon Valley tech campus.

Elevated freight railway turned wildly successful urban park.

A semi-scholarly approach to sex.

An inconspicuous footbridge beloved by San Diego locals.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

One of the few surviving original NASCAR dirt-track speedways.

The 15-foot-wide, 2-ton pan fries hundreds of chickens once a year.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

A small, peaceful sculpture garden with a grim memorial to a disaster that took place a few blocks away.

An alley covered with 20 years of bubble gum.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

A downtown park built on top of unclaimed graves.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The largest self-built castle in the U.S., six decades in the making.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Fans of vintage Vegas, kitsch, and toy pony-based gambling now flock to a casino called The D.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

A non-native grove of 241 redwoods in Southern California.

A small sculpture garden that provides a microcosmic representation of California.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Megachurch turned Catholic church comprised of 10,000 glass panes.

The largest collection of two headed animals in the world.

World War II-era Nazi compound nestled in the Santa Monica hills.