The hidden lair of an alchemist rediscovered in a 2002 flood.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

A private home built to resemble the shape of a microscopic creature.

A celebration of once forgotten materials.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

California's longest-running tourist attraction is a stump.

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

This museum explores the history of the book, from scrolls to mass-produced objects through tools, stories, and massive cast-iron binding machinery (some of it operational).

This historic roadhouse has many tales to tell of San Francisco's early history.

Under the shadow of its towering parent tree, a rare specimen of sequoia produces ghostly white leaves.

A library and museum dedicated to typography.

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

Golden Gate Park's historic collection of plants.

Historical etchings such as “Miserable, wild, distracted 1350" and “The Archdeacon is an ass.”

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

The curious underground history of keeping Paris clean.

A unique journey back in time to an early 20th-century fairground.

A curious collection dedicated to human and animal anatomy and pathology.

These ancient symbols freckling a Scottish cliff remained hidden for centuries.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

Britain's only herd of free-ranging reindeer.