Only hotel where you can legally launder money.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

America's oldest Italian restaurant is a San Francisco institution.

A man-made island in scenic San Francisco Bay.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

Gold Rush-era tombstones line the park's paths.

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

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

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

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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 huge musical instrument played by the ocean.

Inspired by the more famous Scrovegni Chapel, Cappella di San Giovanni contains several amazing frescoes.

These unique "earth pyramid" clay columns can be found in ravines around the village of Tirolo.

The first passenger cable car in the world.

Europe’s oldest natural human mummy.

The first green space constructed on an elevated viaduct.

Pilgrimage site for star-crossed lovers.

These elaborate gothic monuments honor Verona's medieval lords.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.