One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

This sheep farm has been forever transformed since being built for “The Hobbit” film series.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

This municipal playground was co-created by the father of one of the most playful characters ever.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

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

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

A man-made island in scenic San Francisco Bay.

Golden Gate Park's historic collection of plants.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

San Francisco's newly reopened hands-on science museum.

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

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