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

Canyon walls shrouded in ferns.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A vertically floating hemlock controls the waves and weather at Crater Lake.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

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

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

'Cause the fence start shaking, the earth was quaking.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The largest drain hole in the world.

A glittering South Asian anomaly in a wealthy Los Angeles suburb.

Concrete strongholds stand guard over the Golden Gate.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Golden Gate Park's historic collection of plants.

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

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

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

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

Abandoned anti-ballistic missile base.

This museum boasts the ninth-largest collection of insects in North America.

Outsider art or homage to aliens?

Seven ceramic sculptures are scattered around this California college campus.

Special tunnels built so that frogs won't be killed when crossing the highway.

This corn maze so big you may want to pack a lunch, and possibly a flaregun.