A unique market that brings together various goods and cultures.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

The most beautiful Taco Bell in the world even has surfboard parking.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Faceless white figures loom over the city from the rooftop.

Tiki luxury on Nob Hill.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

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

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

A monumental cross hides in the trees in Golden Gate Park.

The remains of a ruined mansion memorialize the 1906 earthquake.

Concrete strongholds stand guard over the Golden Gate.

A 300-ship graveyard, with a few still visible at low tide.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

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.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

An overlooked and unassuming engineering marvel.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.