An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

A whimsical bridge adorned with decorative dragons.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Macabre astrological automaton clock dating to the late 1400s.

This triumphal arch is the only fully standing structure that remains from Roman-era Oea.

Magnificent Roman ruins lie vulnerable to destruction on the edge of the Mediterranean.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Be on the lookout for the symbolic insect all over the city.

The bizarre headgear looks like it was made for a fool, not a king.

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.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

This 700-year-old street food market features baby octopus and soy donuts.

Once a black market electronics marketplace, now an otaku shopper's paradise.

This building has a giant piercing through one of its corners.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.