City Council meetings still happen in this historic building, impeccably preserved on the inside.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

100-year-old shipwreck you can walk up to at low tide.

Where Nor'easters go to die.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

The wooden airship was the largest flying boat ever built.

Two massive rock outcroppings on the Oregon coastline.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

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

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

A hidden subterranean installation offers a view of the sky.

The remains of a ruined mansion memorialize the 1906 earthquake.

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

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

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

The unbelievably opulent home built for an infamous newspaperman.

A hotel and restaurant serving as the mecca of kitsch.

With its peeling paint and faded sign, this theater-turned-recycling plant is a nostalgic relic of 1950s Americana.

The first attack on the continental U.S. during WWII occurred off the coast of a quiet California golf course.