"12. Jahrhundert" "12th century" "Abendländische Architektur" Alemanha Alemania Allemagne Apside Apsis Arc Arch Architecture Architektur Bogen Bow Building Cathedral Chiesa Church "City wall" Cloister Column Deutschland Dom Duitsland Essen Europa Europe Gebäude Germany Harbour Heiligtum Iglesia Kirche Kloster "Middle Ages" Mittelalter "Noord-Rijnland-Westfalen" "Nordrhein-Westfalen" "North Rhine-Westphalia" NRW "Occidental architecture" Pedestal Pillar "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" Saeule Sakralarchitektur Sakralbau Sanctuary Saule Säule Stuetze Stutze Stütze "Town walls" Tyskland Upright Vault Wall "Wall elevation" "Wall mounting" Wand Wandaufbau Wandaufriß Westeuropa x "Zaglebie Ruhry"