A walk through the historic city center, under the streets of Seattle.

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

The first park built over a freeway is a brutalist masterwork.

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

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

The four tall pillars once marked the entrance of the historic Seattle church that fought for women's suffrage and civil rights.

Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This abandoned Slovenian military barracks has become a punky-political art squat.

A forgotten and crumbling Yugoslav monument to the victims of fascism.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

This bridge is haunted by the ghost of a distraught mother.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A wall of chewing gum moonlights as collective art.

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

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

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A musical instrument played by the sea.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

This Croatian computer club features such gaming relics as the infamous Virtual Boy and an 8-bit Pacman machine.

Now abandoned, the world's first torpedo factory is crumbling into the sea.

When Croatia became independent of Yugoslavia, the splintering governments left behind these concrete tunnels.