42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

What's that on the side of that building? Va Va Voom, it's Bettie!

A brewery warehouse which doubles as a circus bigtop.

These two monoliths have stood at the entrance to the neighborhood since the days it was called "Hollywoodland."

Remains of a Greek freighter trapped off of Rocky Point in 1961.

A Bicycle Path in the Sky.

A master of deception, Harry Houdini's greatest trick may have been living in two places at once.

The world's largest wooden trestle stretches across this desert canyon in Anza-Borrego Desert State Park.

An eclectic trailer park retreat in the middle of the California desert.

A storybook European village in Berkeley.

The largest drain hole in the world.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A castle that was built stone by stone by an eccentric journalist.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

A towering bronze statue memorializes the founding father of postwar American conservatism.

One of the largest private collections of cars manufactured by the short-lived Franklin Automobile Company.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

Hidden on a cattle ranch in Arizona, this bookstore has been celebrating Southwest literature for more than 40 years.

Miniature art that tells an enormous story.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Rippling sand dunes frozen in the Arizona rock.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.