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

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

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.

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

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

A Seattle oddities shop brimming with Victorian-era gems and antique curio.

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

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

This historic Victorian hotel has a scandalous history of affairs and murder.

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

The highest point in Washington state is a volcano covered in glaciers.

An outsider art duo's yard has been turned into a whimsical public gallery.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.