This 19th-century church is now a popular roller rink.

A multimedia experience that chronicles the atrocities of racism.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

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.

Visible below the waves are memorials to the city's Gold Rush dead.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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

Quite simply the largest tree in the world (by volume).

A hotel and restaurant serving as the mecca of kitsch.

World-famous, Pink's still manages to keep its prized cult fetish status.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A trash dump made beautiful by nature's power.

Its buzzing collection honors vibrator history.

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

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A huge musical instrument played by the ocean.

Historic funicular railway, believed to be the shortest railroad in the world.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

Hiding amid the largest camellia collection in the country lies a charming children's maze, donated by a secret admirer.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Join the circus for a few lessons to learn clowning, acrobatics, and Chinese contortion.

Gold Rush-era tombstones line the park's paths.