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

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

The restored and active Victorian-era final resting place of San Francisco.

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

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

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Olfactory delights in San Francisco's Botanical Gardens.

San Francisco's newly reopened hands-on science museum.

Its buzzing collection honors vibrator history.

A mysterious painting of the self-declared Emperor of the United States watches over a local hof-brau.

The only theatre in the world constructed specifically for sound movement.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A hand-built folk art installation covered with messages of God's love.

Version of the French Riviera destroyed by the sea.

The ghostly remains of an accidental sea.

World's largest collection devoted to one fruit.

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

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The oldest Naval cemetery on the West Coast.

The rusting remains of the largest assembled WWII fleet on the West Coast.