UTD2839881: Zons II, The “Juddeturm” / Bridgeman Images

UTD2840188: Wik Castle / Bridgeman Images

UTD2840132: Wisby City Walls / Bridgeman Images

UTD2842380: In the court of the Harzgeorde castle in the Harz region / Bridgeman Images

UTD2843839: Olavinlinna castle at Finland, 1920s / Bridgeman Images

UTD2842549: Landgrave's hall at Wartburg castle / Bridgeman Images

HGP2629362: Fountains Abbey viewed from the West, near Ripon, Yorkshire (photo) / Bridgeman Images

HGP2629389: Choir and south transept of Rievaulx Abbey, Rye Valley, Ryedale, Yorkshire (photo) / Bridgeman Images

HGP2629396: Rievaulx Abbey, Rye Valley, Ryedale, Yorkshire (photo) / Bridgeman Images

WFM405257: All Saints Church, Elm, 1856 (b/w photo), English Photographer, (19th century) / Bridgeman Images

TRK831890: Finalnd. Turku. Castle. / Bridgeman Images

TRK831898: Finalnd. Turku. Castle. / Bridgeman Images

TRK831577: Bell tower of the Basilica of Saints John and Paul. 11th century. Rome. / Bridgeman Images

TRK697228: Monastery of Santa Maria de Carracedo, Carracedelo, Castile and León, Spain (photo) / Bridgeman Images

SLC878010: Salisbury Cathedral Chapter House (photo) / Bridgeman Images

SLC878040: The West Front of Salisbury Cathedral (photo) / Bridgeman Images

HGP421421: Grosmont Castle (photo) / Bridgeman Images

MAE3469367: View of the cloister, Noyon Cathedral, Nord-Pas-de-Calais-Picardie, Oise, France (photo) / Bridgeman Images

UTD2875630: The old city hall of Magdeburg, Germany 1930s (b/w photo) / Bridgeman Images

UIG1565137: High Altar with the altarpiece by Tobias Pock at St. Stephen's Cathedral, Vienna (Wien), Austria (photo) / Bridgeman Images

UIG1565138: Pilgrim's Pulpit at St. Stephen's Cathedral, Vienna (Wien), Austria (photo) / Bridgeman Images

UIG1565274: High altar and ambulatory in Onze-Lieve-Vrouwekerk (Church of Our Lady), Bruges (Brugge), West Flanders, Belgium (photo) / Bridgeman Images

UIG1566443: Porta Nigra Roman Gateway, Trier, Rhineland-Palatinate, Germany (photo) / Bridgeman Images

UIG1566440: Porta Nigra Roman Gateway, Trier, Rhineland-Palatinate, Germany (photo) / Bridgeman Images

UIG1566396: Shadows in the Corridor Along the Cloister in the Mainzer Dom (Mainz Cathedral Or St. Martin's Cathedral), Mainz, Germany (photo) / Bridgeman Images

UIG1566441: Porta Nigra Roman Gateway, Trier, Rhineland-Palatinate, Germany (photo) / Bridgeman Images

UIG1566150: St. Theodor (Iron Gate), Split, Split-Dalmatia, Croatia (photo) / Bridgeman Images

UIG1566151: St. Theodor (Iron Gate), Split, Split-Dalmatia, Croatia (photo) / Bridgeman Images

UIG1565942: Column of the Konigshalle Or Torhalle (King's Hall Or Gatehouse) to the Abbey and Altenmünster of Lorsch at Lorsch in Germany (photo) / Bridgeman Images

UIG1569485: Mont-Saint-Michel and Mudflats in the Bay, as seen from the Southwest, France (photo) / Bridgeman Images

UIG1569514: Arches Between the Double Columns of the Cloister of the Abbey of Mont-Saint-Michel, France (photo) / Bridgeman Images

UIG1569208: Commendatory Abbot's Lodging in the Cistercian Abbey of Fontenay, Cote D'or, France (photo) / Bridgeman Images

UIG1569224: Chapter House of the Abbey Church of the Cistercian Abbey of Fontenay, Cote D'or, France (photo) / Bridgeman Images

UIG1569232: Arcade Surrounding the Cloister Garden of the Cistercian Abbey of Fontenay, Cote D'or, France (photo) / Bridgeman Images

UIG1569243: Common Room of the Cistercian Abbey of Fontenay, Cote D'or, France (photo) / Bridgeman Images

UIG1569486: Mont-Saint-Michel and Mudflats in the Bay, as seen from the Southwest, France (photo) / Bridgeman Images