One of Japan's most famous sights, the bridge was originally built in 1673.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Beautiful views and Roman-style statues on the Italian coast.

A fake medieval village in the middle of Turin.

A lover's walk between hilltop towns, decorated with graffiti love notes.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Pilgrimage site for star-crossed lovers.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

The huge golden reliquary of a testicle-smashing saint.

The world's largest reflecting pool is just two centimeters deep.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

The world's northernmost aquarium looks like it has fallen over.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

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

The hallucinogenic center of the ancient world.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.