San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

Its buzzing collection honors vibrator history.

The remains of a ruined mansion memorialize the 1906 earthquake.

San Diego's most historic and haunted home.

The final resting place of a space program monolith.

San Francisco's newly reopened hands-on science museum.

Olfactory delights in San Francisco's Botanical Gardens.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

Reverend Franzo Wayne King administers spiritual enlightenment through the music of the jazz legend.

A classically inspired temple in Redwood City.

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

A huge musical instrument played by the ocean.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

The ghost town that ended up on Ebay.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

Seven ceramic sculptures are scattered around this California college campus.

A spiritual vortex among the red rocks in Sedona.

Long tunnels run under the ancient chariot racing circuit to the tower.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The legendary statue-hating superintendent of Golden Gate Park is honored with... a statue.