Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

The last bastion of Roman presence north of the Alps looms over a German town.

Vast stretch of tide-pools with a unique Moroccan charm.

Morocco's Argania trees are infested with nut-hungry goats.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

This unique building in the main square stands out among the city's typically Baroque architecture.

This church is named for one of the most dramatic tales in the early Christian church.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

A centuries-old forgotten underworld lies beneath Malta.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

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

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

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

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

Sofia's legislative center is continuously reinventing itself.

This building has two facades of clashing architectural designs.

Underneath this Byzantinian church lies a necropolis filled with ancient tombs and the ruins of previous churches.

A striking symbol of the Bulgarian capital.

One of the oldest wine cellars in Germany is now a restaurant beneath Bremen's town hall.

A spitting ode to a German serial killer.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

The only remaining U-boat that is still floating never actually saw any action in World War II.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.