A colorful architectural gem in Seattle's uniquely modern Central Library.

This working class sculpture pounds his hammer all the livelong day.

A wall of chewing gum moonlights as collective art.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

Frank Lloyd Wright died a year before construction on his largest public project even began.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

340 bicycles, 65 feet high.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

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

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

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

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

Faceless white figures loom over the city from the rooftop.

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

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

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

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

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

The longest burning light bulb in the world.

At this California chicken ranch, four bucks will get you 18 eggs and a chorus of dancing animatronic poultry.