No one knows exactly how deep the world’s deepest geothermal hot spring is.

A humble garage, world-famous for being the epicenter of a technology revolution.

This 18-foot-tall steel lotus is a meditation on ecological crisis that originally appeared at Burning Man.

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

This former New Jersey bus now exists as a public art exhibit.

Bill Murray bowled three straight strikes here at Reno's "Taj Mahal of Tenpins."

This beloved roadside attraction welcomes visitors with his signature neon smile.

The arch that celebrated the completion of the Lincoln and Victory highways.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

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

A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

Outside San Francisco lies a small clown cemetery and memorial.

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