"12. Jahrhundert" "12th century" "Abendländische Architektur" Alemanha Alemania Allemagne Architecture Architektur Building Cathedral Chiesa Church "City wall" Cloister Deutschland Dom Duitsland Essen Europa Europe Facade Fassade Gebäude Germany Harbour Heiligtum Iglesia Kirche Kloster "Middle Ages" Mittelalter "Noord-Rijnland-Westfalen" "Nordrhein-Westfalen" "North Rhine-Westphalia" NRW "Occidental architecture" "Place of refuge" "Regiao do Ruhr" Retreat "Rhenanie-du-Nord-Westphalie" Romanesque "Romanesque architecture" Romanik Ruhr "Ruhr Area" "Ruhr Bölgesi" "Ruhr District" Ruhrgebied Ruhrgebiet Ruhromradet "Sacral architecture" "Sacred building" Sakralarchitektur Sakralbau Sanctuary "Town walls" Tyskland Wall "Wall elevation" "Wall mounting" Wand Wandaufbau Westeuropa Westwerk Westwork x "Zaglebie Ruhry"