Been there - loved it~ Milan, Italy - Duomo di Milano (Milan Cathedral) . "The cathedral church of Milan, Italy, this Gothic cathedral took nearly six centuries to complete. It is the fourth-largest cathedral in the world and the largest in Italy.
Cologne Cathedral 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. Built in The cathedral's height is 516 feet.