One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

An encyclopedic collection of mammal penises.

This stunning concert hall has become a symbol of Iceland's national recovery.

The largest whale museum in Europe allows visitors to walk among life-size giants.

One of the first intercontinental ballistic missile sites in the United States.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

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

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

Only hotel where you can legally launder money.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

A modest reminder of treacherous waters at the Golden Gate.

27-room home built with the fortune of a sugar magnate.

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

A monument to the love people have for their pets.

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

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

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

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

The oldest lawn bowling club in the United States.

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

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

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

San Francisco's first World's Fair, dedicated to the wonders of California.

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