Dubbed "the most beautiful balcony in Europe", the Corniche Road in Luxembourg runs along the Alzeit Valley on the ramparts built by the Spanish and French in the seventeenth century from the Promontory to the lower part of the Holy Spirit castle called Rondellen, and offers a stunning panoramic view. On the Alzeit Valley, the Grund District and the Ram Plateau, you can also notice the elegant facades of aristocratic houses facing the valley when walking along this scenic road.