A rare specimen of the ancient piggy bank of Java resides in one of the unassuming corners of the Ashmolean.

The spectacular geological formations make it one of the most impressive caves in Europe.

An Antoni Gaudí masterpiece in Astorga.

This crumbling Portuguese ruin overlooks the populace it once ruled.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.

Inside this church is an obscure piece of art carved by the famous Alice Liddell.

This futuristic observatory at the top of the Pyrénées offers unrivaled views.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

Beneath the city of Lourdes, France is a massive, concrete church.

This chimerical bridge/tunnel appears to dead end right into the sea.

Controversy surrounded the creation of this anti-fascist statue.

The last Viking king of Denmark is buried inside the crypt of this cathedral.

A spitting ode to a German serial killer.

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

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

Over a thousand musical instruments are on display, from bagpipes and harpsichords to drums and the sinuous serpent.

In the depths of Glasgow Cathedral's crypt, one pillar stands out from all others.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

The sign announces the Scottish village's cosmic connections, as it's twinned with Glenelg, Mars.

This medieval manor house was hastily fortified when it found itself in the middle of the Scottish fight for independence.