Sitting atop San Francisco's tallest hill, a cross honors the victims of the Armenian genocide.

A quiet marker in memory of local men and women lost in WWI.

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

This contorting sculpture is the tallest in San Francisco.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

27-room home built with the fortune of a sugar magnate.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

A miniature view of the park, caught in time.

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

Guns that have been defending San Francisco since 1904.

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

Inside this museum, the history of the Walt Disney Family empire is on full display.

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

Faceless white figures loom over the city from the rooftop.

Recovered from the brink of extinction, at home in the Financial District.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

Half of a house.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

An overlooked and unassuming engineering marvel.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

Golden Gate Park's historic collection of plants.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A modern mechanical planetary system, part of a 10,000 year clock.