A former factory hosts an amazing collection of Mexican marionettes.

This cluttered cantina is famed for its cheese-spiked, raisin-flavored liqueur.

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

A mysterious pillar in an ancient burial chamber is said to predict how long you have to live.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

This research center for rare prosimians is studying how they sleep to help prolong human life.

Home to the "Circus" trees created by Axel Erlandson.

A comprehensive collection of Pez dispensers.

This giant shopping mall still holds signs of its automotive past.

An extensive collection of ancient Egyptian artifacts and mummies.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

A giant chess set, minus the psychedelic drug trip.

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

From the Difference Engine to the Cray-1, all under one roof.

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

Golden Gate Park's historic collection of plants.

Olfactory delights in San Francisco's Botanical Gardens.

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

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

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

Art in the form of a winding, man made crack in stone.

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.