A sprawling cave network created by a lone lava tube.

Preserving the remains of Native American cultures which otherwise would have been submerged behind Hoover Dam.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A hotel and restaurant serving as the mecca of kitsch.

A hand-built folk art installation covered with messages of God's love.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The ghostly remains of an accidental sea.

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

The Giant Lemon of Lemon Grove.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.