UNESCO declared the powerful bastions and the old city, whose history is no less rich, as a World Heritage site in 1994. Your imagination will run wild in the subterranean network of casemates, and the view from "the most beautiful balcony of Europe" will fascinate you just as it has fascinated those who came before you. The Grand Ducal Palace, residence of the Grand Duke, boasts one of the most beautiful façades in the city (Flemish Renaissance, 16th century). The magnificent interior rooms in this princely setting are open to the public in the summer and give visitors an overview of Luxembourg’s monarchy. Luxembourg City - a meeting with a fascinating past!