An Aladdin's cave of old Silicon Valley tech.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

For roadside fast food, pull over at the giant orange.

An extensive collection of ancient Egyptian artifacts and mummies.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Hopeless romantics will swoon over the sweet story behind this bright and colorful home.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

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

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

Home to the "Circus" trees created by Axel Erlandson.

The rocks in this arid basin leave trails of movement behind them.

Hidden in the back of a disused small town hotel is a dive bar shellacked with over a million pennies.

A mountain range on an active U.S. Navy base hides thousands of mysterious prehistoric rock carvings.

A hard-to-reach oasis in a desolate corner of Death Valley National Park.

An antique store houses the last operational diner from the defunct department store chain.

This rock formation named for its unique shape is one of many that call the Alabama Hills home.

The first life claimed by this record-breaking peak wasn't lost to exposure or a fall but rather lightning.

Quite simply the largest tree in the world (by volume).

A 19th-century cabin built into a hollowed-out Sequoia tree.

Four hundred granite steps were built into this massive rock by the National Park Service.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

Each summer, the migratory bats living beneath the bypass form "batnadoes" at dusk.