This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

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

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

A hidden subterranean installation offers a view of the sky.

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

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

This print shop boasts one of the largest pinball arcades in San Francisco.

This 19th-century church is now a popular roller rink.

A monument to the love people have for their pets.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

This abandoned boat was left in place thanks to its rotting beauty.

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

These WWII-era murals were initially booed as a libelous portrayal of the American dream but have survived multiple attempts to have them destroyed.

A classic advertising icon immortalized in regal bronze.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

A large instrument played by the wind.

A modest reminder of treacherous waters at the Golden Gate.

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

The largest of Denmark's seven mysterious round churches stands on an island in the Baltic Sea.

An artist's vision for connectivity spans seven continents and 16 countries.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.