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

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

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

A former hardware store near Yerba Buena is the official home of California's history.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

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

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

This private residence was the template for one of the most beloved television homes of all time.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

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

Inside this museum, the history of the Walt Disney Family empire is on full display.

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

A tribute to the life and work of the beloved "Peanuts" cartoonist.

Frank Lloyd Wright died a year before construction on his largest public project even began.

Concrete strongholds stand guard over the Golden Gate.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

There aren't too many operational funiculars around, but Pittsburgh has two!

Belly up to the bar in Cowtown, don't forget to buy some boots.

This downtown Dallas art installation is always on the lookout.

In Parr Park, thousands of painted rocks line this walking trail.

High-end dining has a home in this former gas station.