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

A hidden subterranean installation offers a view of the sky.

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

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

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

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

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

A modest reminder of treacherous waters at the Golden Gate.

Concrete strongholds stand guard over the Golden Gate.

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.

At night, a grove of towering redwood trees growing through the pavement block out all light from the so-called “Dark Park” of Madrone Avenue.

A porcelain company's former dumping ground, completely covered in pieces of collectible ceramics.

This downtown Dallas art installation is always on the lookout.

This restaurant features Native American foods from across the country.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

Oakland's beautiful monumental cemetery.

Dive bar built out of the remains of a whaling ship.

The only thing still moving in this town is the eponymous hot spring.

This sign designates the road that leads to the infamous Area 51.

An enormous illuminated figure dances on the Las Vegas strip.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.