The neighborhood of Eagle Rock is named after a gigantic boulder with a shadowy surprise.

A modest reminder of treacherous waters at the Golden Gate.

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

Across Ring Mountain is a vast collection of Native American petroglyphs unique to the region.

Where the polar bear watches over everything, and every drink is a double.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

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

Oldest building in California still in use.

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.

The blinking light atop the iconic landmark has been sending secret messages for decades.

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

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Abandoned bridge hidden deep in the San Gabriel Mountains.

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

A hotel and restaurant serving as the mecca of kitsch.

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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

This historic train station has been converted to a locomotive themed hotel.

A Memphis park where you can walk the whole Mississippi River in one go.

Right next to departures—how convenient!