2. Walk Through a Fortification That’s More Than 1,000 Years Old
Originally built in 963 to protect the citizens, the Bock Casemates quickly became a centerpiece of Luxembourg City over the course of the coming centuries. Even as the spot was overrun and conquered by forces from France, Spain, Germany, and Austria, the Bock Casemates were expanded and influenced by some of the greatest architectural minds ever to walk the planet. The result is a mystifying tour experience that celebrates flourishes from an incredible array of cultures spanning the course of an entire millennium.