This turn of the century masterpiece has a mysterious goaty interloper.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

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

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.

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

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A couple turned their front yard into an artistic masterpiece.

An inconspicuous footbridge beloved by San Diego locals.

Lucha Libre (Mexican Wrestling) themed taco shop.

San Diego's most historic and haunted home.

This family tattoo parlor has been inking religious pilgrims in the Middle East for 700 years.

The only quarter of the Old City not dedicated to a major world religion.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

Follow the original medieval paths that wind through this intriguing section of the city.

10,000 flowered plants bloom in the City of Roses.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

The unbelievably opulent home built for an infamous newspaperman.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

One woman's Viking Castle on Lake Tahoe.

Bits and pieces from the ill-fated Donner Party's winter cabins.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.