America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

The miraculous hydrant that saved the Mission District in 1906.

A winding path built in secret on the edge of the continent.

A classically inspired temple in Redwood City.

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

This Alamo Square mansion is rumored to have hosted satanic rituals and other occult practices.

The original place where water met land in the City by the Bay is outlined in brass.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

The rustic cabin-like decor of this Arts and Crafts-style church reflects the love of nature central to its little-known theology.

Faceless white figures loom over the city from the rooftop.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

A library and museum dedicated to typography.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The restored and active Victorian-era final resting place of San Francisco.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

Olfactory delights in San Francisco's Botanical Gardens.

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

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

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

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

This graveyard boasts a medley of diverse and imaginative funeral architecture.