A former hardware store near Yerba Buena is the official home of California's history.

Furniture tries to escape an abandoned building in San Francisco.

An alley covered with 20 years of bubble gum.

A massive volcanic plug is now a protected area that hosts a number of bird species.

The unbelievably opulent home built for an infamous newspaperman.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Frank Lloyd Wright died a year before construction on his largest public project even began.

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

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

A massive sea stack famous for its appearance in The Goonies.

A Roman-style column in Oregon hides a spiral staircase inside.

An innovative attempt to break a siege in the American Civil War still scars the earth today.

The trials and tribulations of marking Poe's grave.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

A museum dedicated to exhibiting remarkable outsider art.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

The "lovely red Vega" of the legendary record-settling pilot.