This little blue house pokes out over the campus of UC San Diego, seven stories high.

A lush Seattle garden designed by the same landscape architects responsible for New York's Central Park.

A statue commemorate Tommie Smith and John Carlos's brave protest at the 1968 Olympics, a watershed moment for civil rights.

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.

The largest permanent Monopoly board makes one of the longest games even bigger.

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

The perfect spot for a picnic, right next to a giant ballistic missile.

The timepiece that exonerated a labor radical accused of a parade bombing that killed ten people.

Concrete strongholds stand guard over the Golden Gate.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

This small monument to the great inventor contains a time capsule and a Wi-Fi hotspot.

Guarded by the Angel of Grief, the Stanford family tomb attracts an odd mix of halloween revelry and somber contemplation.

A humble garage, world-famous for being the epicenter of a technology revolution.

A hidden world of exotic succulents and cacti.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

Antiques by the Bay.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

From the Difference Engine to the Cray-1, all under one roof.

This replica of the Greek structure is in the heart of Nashville.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

The oldest apple tree in the Pacific Northwest.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

An abandoned convention space that has been left to the homeless and the radical.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.