Cologne Cathedral (German: Kölner Dom, officially Hohe Domkirche Sankt Petrus, Latin: Ecclesia Cathedralis Sanctorum Petri, English: Cathedral Church of Saint Peter) is a Roman Catholic cathedral in Cologne, Germany. It is the seat of the Archbishop of Cologne and of the administration of the Archdiocese of Cologne. It is a renowned monument of German Catholicism and Gothic architecture and was declared a World Heritage Site in 1996. It is Germany's most visited landmark, attracting an average of 20,000 people a day and currently the tallest twin-spired church at 157 m (515 ft) tall. Construction of Cologne Cathedral commenced in 1248 and was halted in 1473, leaving it unfinished.