Despite being pillaged and destroyed a number over times down the centuries, this historic church still sort of stands.

The world's most active stratovolcano is almost always erupting.

A tiny church on a man-made island in the Adriatic.

An ancient knight and a symbol of the city's freedom.

Oriental bazaar in the heart of Sarajevo.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

This one-time health resort was used by aristocrats around the world.

A miniature train-ride through Slovenia's largest cave system.

A whimsical bridge adorned with decorative dragons.

A beautifully eclectic mix of architectural styles.

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

Romania's triumphal arch looks out over Bucharest.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

A Roman monument to their own civil engineering prowess.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A giant portrait of an ancient king looms over the river.