The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

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

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

San Francisco Bay's ghost town.

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

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A museum befitting the city responsible for supplying the majority of the world's LSD.

Olfactory delights in San Francisco's Botanical Gardens.

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

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

A strange house built only at night, with rumored mystic inspiration.

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

A midcentury ranch house hides a literal treasure trove of unique rocks and minerals.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

If you've ever wanted to learn about the history of Asian fish balls, this Taiwanese museum has you covered.

Eulogizing an unknown man's unusual demise.

This Seattle joint serves food inside an old train car once used by FDR.

These subterranean storage areas hold emergency water reserves.

A rough granite monument marks the spot where Europeans first caught sight of the San Francisco Bay.

An abandoned outdoor movie theater in the Sinai desert.