Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This massive redwood tree has a hole in the base big enough to drive through.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

The liveliest ghost town in the state.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Home to the "Circus" trees created by Axel Erlandson.

One of the most unusual geological features, recognizable from a dozen hit movies.

A giant Troll lurks under one of Seattle's oldest bridges.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

The ghostly remains of an accidental sea.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Odd outsider art installations surround a Gold Rush-era ghost town.

The rocks in this arid basin leave trails of movement behind them.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

London's smallest police station is barely the size of a phone booth.

Giant, friendly pelicans in Central London, the most unlikely of places.

A classic advertising icon immortalized in regal bronze.

Home to one of the world’s largest collections of model yachts.

A century and a half of research in the sciences and natural history, still going strong.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.