A striking symbol of the Bulgarian capital.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

Sofia's legislative center is continuously reinventing itself.

"Holy Wisdom" overlooks the city that became its namesake.

A vast Communist-era exhibition space in the Bulgarian capital.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

This historic black and white monastery is one of Bulgaria's architectural jewels.

A fountain standing as a testament to a doomed alliance.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A beer pipeline runs beneath Bruges.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This legendary giant, born from vegetables, terrorized townspeople and cheated local children in games.

A man throwing a giant severed hand towers over Antwerp’s main square.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

Macabre astrological automaton clock dating to the late 1400s.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

The charming storybook building now houses a small police museum.

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

The final resting place of one of the brightest physicists of the 20th century.