The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

Relive a Polish uprising via an enormous, century-old cyclorama.

This ex-prison dates back to the Middle Ages.

A collection of old neon signs from all over Poland line a secluded courtyard.

The iconic egg tart gets an upgrade with a laminated sourdough crust.

This Algerian sweet shop serves confections in an eye-popping array of hues.

Air-raid tunnels hidden beneath this opulent hotel provided shelter and an escape route—and one of the world's longest slides.

Taiwan’s iconic dish is in peak form here.

Movie buffs will love this Taiwanese director’s ode to film history.

Dine on Hakka dishes at a dreamy cottage nestled in the heart of Taipei.

This kitschy, kinky homage to Taipei’s old “grandpa shops” is full of eye-candy.

This eerie sculpture overlooks what was known as the Road of Bones under Joseph Stalin.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

A temple to modernity, tucked away amid Barcelona's more well known museums.

Barça football fans might see the insignia hidden in a church window as a divine sign.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Turntable anonymously received orphans, alms, and groceries.

An open-air "garden" of mural art that changes weekly.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

A beautiful but toxic fountain of mercury.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.