A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

The longest and widest floating bridge in the world.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

Worker-owned cooperative and resource for those looking to lighten their ecological footprint.

The most beautiful Taco Bell in the world even has surfboard parking.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

Small church built in the 19th century for whites and slaves to worship together.

To find the "unicorns of the deep" you've got to go downstairs.

A Roman-inspired temple once controlled half of San Francisco's waters.

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

An amazing collection of fantastic reptiles, amphibians, spiders, and insects.

Check out a shovel along with your Shakespeare.

A German artist built a home and garden filled with whimsical art pieces, like a massive, operational volcano.

Model Trains and Much More in Hamburg.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Steinbeck's old stomping grounds, immortalized in Cannery Row.

The haunting ruins of Jack London's dream house.

Concrete strongholds stand guard over the Golden Gate.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

A man-made island in scenic San Francisco Bay.

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

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

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

Golden Gate Park's historic collection of plants.