Only hotel where you can legally launder money.

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

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

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

Over 315,000 preserved amphibians and reptiles in jars.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

A man-made island in scenic San Francisco Bay.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

Golden Gate Park's historic collection of plants.

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

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

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

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

A monument to the love people have for their pets.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The restored and active Victorian-era final resting place of San Francisco.

A 300-ship graveyard, with a few still visible at low tide.

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

Visible below the waves are memorials to the city's Gold Rush dead.

Tiki luxury on Nob Hill.

The tea room that pushed the boundaries of adorable straight into... we can't find the words.