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

A classically inspired temple in Redwood City.

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

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

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

Towering basalt columns, a creation of fire and ice.

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

A tunnel with windows, so you don't miss out on the impressive views.

A reproduction of earth's many biomes.