A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

Thousands of turbines whir at at the origin of North American wind power.

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

Art in the form of a winding, man made crack in stone.

A hidden subterranean installation offers a view of the sky.

San Francisco's first World's Fair, dedicated to the wonders of California.

World-famous, Pink's still manages to keep its prized cult fetish status.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

A trading post in the North Pole where children send letters.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

A walk through the historic city center, under the streets of Seattle.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This historic tower in the California desert promises visitors a "vortex of good vibes".

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

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 man-made island in scenic San Francisco Bay.

A huge musical instrument played by the ocean.