This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

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

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

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

Towering basalt columns, a creation of fire and ice.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Rippling sand dunes frozen in the Arizona rock.

Semi-recognized center of the world, with many oddities.

The ghostly remains of an accidental sea.

A world-class observatory in the California desert.

A museum dedicated to the history and exploration of both popular music and science fiction.

A wall of chewing gum moonlights as collective art.

A Boeing mechanic and his wife leave a whimsical, stone sculptured garden as their legacy.

A beautiful geyser under environmental threat.

A bike being "eaten" by a tree is the real Vashon legend behind popular children's book, "Red Ranger Came Calling."

The magic's in the hole!

Half of a house.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

A one-of-a-kind collection of a unique medium.

Decommissioned experimental solar facilities that pioneered solar energy technology.

An academy where anyone can train in the exciting acrobatic sports of parkour and freerunning.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

A trash dump made beautiful by nature's power.