FBU7128456: Royal portal of the cathedral Saint André. Bordeaux / Bridgeman Images

FBU7143548: Château de Bazoche / Bridgeman Images

FBU7143553: Château de Bazoche / Bridgeman Images

ITR6434914: Sculpted detail. Basilica of Saint Madeleine, Vezelay, 1120-1150 (photography), Romanesque, (12th century) / Bridgeman Images

ITR6435002: Sculpted detail. Basilica of Saint Madeleine, Vezelay, 1120-1150 (photography), Romanesque, (12th century) / Bridgeman Images

ITR6434865: Sculpted detail. Basilica of Saint Madeleine, Vezelay, 1120-1150 (photography), Romanesque, (12th century) / Bridgeman Images

FBU7125770: Thoronet Abbey.The cloister / Bridgeman Images

SCN7177310: Catholic Cathedral of the Assumption of Virgin Mary (interior), Palermo, Sicily, Italy (photo) / Bridgeman Images

SCN7177311: Catholic Cathedral of the Assumption of Virgin Mary (interior), Palermo, Sicily, Italy (photo) / Bridgeman Images

FBU6381680: Castle of Peyrepertuse (10th-13th century) / Bridgeman Images

FBU6381681: Castle of Peyrepertuse (10th-13th century) / Bridgeman Images

FBU6381683: Castle of Peyrepertuse (10th-13th century) / Bridgeman Images

FBU6381686: Castle of Peyrepertuse (10th-13th century) / Bridgeman Images

MAE340580: Detail of a capital in the chapter house (photo) / Bridgeman Images

NUM363027: View of the nave (photo) / Bridgeman Images

LIT372479: View of Dhammayangyi Temple (photo) / Bridgeman Images

HGP395510: Cow Tower (photo) / Bridgeman Images

THA781769: Canterbury Cathedral (oil on canvas), Earp, Henry (1831-1914) / Bridgeman Images

JB148456: Archangel Gabriel (mosaic), Russian School (11th century) / Bridgeman Images

XIR208663: Exterior of the Katholikon, c.1020 (photo) / Bridgeman Images

TRK563142: Monastery of Sant Cugat. Capital depicting Samson slaying the lion. Catalonia. Spain. / Bridgeman Images

VLS875145: View onto the Bargello, from the tower of the Palazzo Vecchio, Florence (photo) / Bridgeman Images

TRK1031052: Spain. San Millan de la Cogolla. Monastery of San Millan de Suso. Exterior. / Bridgeman Images

TRK878770: Hagia Sophia. Tribune of Singers. Istanbul. / Bridgeman Images

MAE3469146: Puente Romano, Córdoba, Andalucía, Córdoba, Spain (photo) / Bridgeman Images

MOR3707117: Entrance to the Mudéjar Chapel of San Bartolomé, a 15th-century funerary chapel, Cordoba, Spain (photo) / Bridgeman Images

TRK697344: Ukraine. Autonomous Republic of Crimea. Sudak. Genoese medieval Fortress. / Bridgeman Images

TRK697346: Ukraine. Autonomous Republic of Crimea. Sudak. Genoese medieval Fortress. / Bridgeman Images

IMB4884211: Fortress of the Crusaders; medieval castle; Order of St. John; residential tower; Kolossi near Limassol; Southern Cyprus; Republic of Cyprus; Mediterranean Sea; Europe / Bridgeman Images

SQ336107: Porta dei Fiori (photo) / Bridgeman Images

PC991670: Tiled floor, c.1460, Palazzo Venezia, Rome, Italy (photo) / Bridgeman Images

SCN3249114: View of the Cattedrale di San Vigilio, Duomo di Trento, Trento, Italy (photo) / Bridgeman Images

MES3470006: View of the Church of Santa Maria Assunta, Muggia, Friuli, Italy (photo) / Bridgeman Images

MAE3469397: Funerary sculpture from the west door, Church of Saint-Pierre-es-Liens, Blérancourt, Nord-Pas-de-Calais-Picardie, Aisne, France (photo) / Bridgeman Images

MAE3469398: Detail of the west door sculpture, Church of Saint-Pierre-es-Liens, Blérancourt, Nord-Pas-de-Calais-Picardie, Aisne, France (photo) / Bridgeman Images

MAE3469547: Church of Saint Anne of Nohant, Nohant-Vic, Centre, Indre, France (photo) / Bridgeman Images