Once the last route taken by condemned prisoners.

This cemetery features modernist statues as strange as its name.

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

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

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

This mysterious hilltop collection of Druid carvings isn't quite what it seems.

A blunder resulted in these charming stone-lined streams becoming the target of a Nazi bombing.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

Visiting this café is like visiting the Austrian grandma you wish you had.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Apartment complexes built into huge repurposed natural gas tanks.

This stately palace, first built in the 16th century, was converted into a prison in 1830.

The beautiful baroque library of the Hapsburg empire.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

A silly medieval mural preserved on the side of a Viennese house.

Legends surround an ancient tree trunk riddled with nails for good luck.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

A spherical "micro-nation" in the heart of Vienna.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The medieval legend behind this holy well was one of the inspirations behind "Alice's Adventures in Wonderland."

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.