One of the most scenic stretches of road in America winds between some of the country's oldest trees.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A huge musical instrument played by the ocean.

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

An extensive collection of ancient Egyptian artifacts and mummies.

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

The world's first permanently occupied mountain-top observatory continues to report on the stars.

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

A 1920s speakeasy that had rum runners racing up and down the shores of California.

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

Floating man-made island and upscale restaurant.

A man-made island in scenic San Francisco Bay.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

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

A living time capsule of the 1960s Richardson Bay water-front.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A 300-ship graveyard, with a few still visible at low tide.

Concrete strongholds stand guard over the Golden Gate.

'Cause the fence start shaking, the earth was quaking.

The fossilized remains of ancient California redwoods.