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

A giant Troll lurks under one of Seattle's oldest bridges.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

Slum Settlement Filled With Mountains of Garbage.

Eighty million natural history specimens call this gargantuan museum home.

Manchester salvaged this sculpture of the adopted Mancunian when it was no longer wanted in Ukraine.

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

The lead horse on a Disneyland merry-go-round that is older than the park itself.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

The longest and widest floating bridge in the world.

A museum dedicated to the history and exploration of both popular music and science fiction.

This sculpture forces visitors to confront their relationship with space.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

A wall of chewing gum moonlights as collective art.

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

Couple's personal collection of pinball machines turned public pinball museum.

This former coal gasification plant found a curious second life as a popular public park.

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

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Megachurch turned Catholic church comprised of 10,000 glass panes.