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

Canyon walls shrouded in ferns.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Explore 10 acres of environmental sculptures.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

A psychedelic labyrinth on the San Francisco bay.

A hotel and restaurant serving as the mecca of kitsch.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A 140-year-old castle with underground caves hidden in San Francisco.

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

A trash dump made beautiful by nature's power.

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

The legendary building that needed ghostly approval before being built.

A one-of-a-kind collection of a unique medium.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A huge musical instrument played by the ocean.

An artsy hidden staircase leads to breathtaking views of San Francisco.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.