The largest permanent Monopoly board makes one of the longest games even bigger.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This unique formation appears as though an asteroid landed on the forest.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

Giant jewel-toned statues fill the grounds of this Cambodian Buddhist temple in California.

This mysterious series of teeny guerrilla installations sheds a whimsical light on street art in Oakland.

A ruined hotel with an unlucky history and an eerie present.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

An essential stop before plundering, BYO Cutlass.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

This giant shopping mall still holds signs of its automotive past.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A natural dome made of volcanic glass in Inyo National Forest.

Towering basalt columns, a creation of fire and ice.

This infamous prison has a store where you can buy goods crafted by incarcerated people.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.