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The Corniche runs on the walls of the old fortress.
The Corniche in Luxembourg , also known as the most beautiful balcony in Europe , runs on the ramparts built by the Spanish and French in the 17th century along the Alzette valley.
The path stretches from the Bockfelsen to the lower part of the Heiliggeist Citadel . Until 1870 the Corniche was provided with stairs at steeply sloping places. Only after the fortress had been razed they were leveled. A large part of the protective walls with loopholes had to give way and thus gave a view of the Alzette valley , the Grund district and the Rham plateau .