A fantastic castle rumored to be the birthplace of King Arthur.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Eighty million natural history specimens call this gargantuan museum home.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

This ancient theater was once the home of fierce gladiatorial battles.

The Sun King's military models, saved from the Louvre.

This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

The world's tallest bridge is also possibly the most elegant.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

Historic medieval fortified city in southwest France.

Ancient paintings known as the "Sistine Chapel of Cave Art."