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.

A modest reminder of treacherous waters at the Golden Gate.

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

Two thousand artifacts from around the world collected by one woman who loved to travel.

An enormous, inside-out glass globe built in 1935.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

San Diego's most historic and haunted home.

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

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

Playable, historic pinball machines fill this Alameda museum.