The second-largest collection of runic calendar staffs in Sweden.

This museum presents a dogged pursuit of 500 years of veterinary history.

Standing in for the first ship to navigate the Northwest Passage.

Masterful ceramic fountain and map of the Pacific Basin.

Once the fastest ship from San Francisco to Tahiti, the Galilee now lays in pieces in three different cities.

Only hotel where you can legally launder money.

These subterranean storage areas hold emergency water reserves.

A shining, cold, black organ lies in San Francisco's financial district.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

Noble beasts perhaps, but not the Emperor's dogs.

A miniature view of the park, caught in time.

The taxidermied remains of the "last wild grizzly bear in California" and of the symbol of the state of California.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

The only visible piece of San Francisco's most famous shipwreck.

A speck of nature and art in one of San Francisco’s most notorious neighborhoods.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

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

A man-made island in scenic San Francisco Bay.

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

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

The miraculous hydrant that saved the Mission District in 1906.

Nuclear waste dump site now an environmental sanctuary.

Golden Gate Park's historic collection of plants.