Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Week-long block party becomes a competition for the best decorated street.

This massive subterranean fissure is known as the "underground Grand Canyon."

An otherworldly alpine pasture in Slovenia with historical ties to WWII and architecture that recalls Middle Earth.

Piran’s oldest square is laden with history and a beautiful 18th-century reservoir.

In between two buildings in Ljubljana, medieval tunnel to nowhere.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A whimsical bridge adorned with decorative dragons.

When this monument to Slovenia's national poet was erected, it's said to have sparked the ire of nearby church authorities.

Inspired by the Rialto Bridge in Venice, these three clustered bridges were just one part of a Slovenian architect’s grand vision.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

This small, easily-overlooked sculpture recalls the first time Graz saw a live elephant.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

Dozens of musicians have planted trees in this Danish park, and donated songs to go with them.

Life-sized bronze statues of fictional puppet characters.

This Sheffield sculpture composed of 17,000 Allen keys honors both urban falcons and a furniture icon.

The once-a-day siren is a reminder of the days before time was standardized.

This police call box harkens back to an era of pre-radio communications, and has a rather unique feature.

Presented to the city in 1910 for public use, these brass markers show varying lengths.

A tribute to the women who quietly kept the local steelworks alive during both world wars.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.