FBU4249490: San Giminiano. Medieval village. Tuscany, Italy - Medieval Village of San Giminiano. Tuscany Italy / Bridgeman Images

FBU4249495: San Giminiano. Medieval village. Tuscany, Italy - Medieval Village of San Giminiano. Tuscany Italy / Bridgeman Images

JCH316147: The Crusader Castle of Krak des Chevaliers (photo) / Bridgeman Images

JCH316151: Detail of one of the bastions of the Crusader Castle of Krak des Chevaliers (photo) / Bridgeman Images

JCH316152: The Tower of the King's Daughter at the Crusader Castle of Krak des Chevaliers (photo) / Bridgeman Images

HGP374052: Stone carving of a musician, Beverley Minster, East Riding, Yorkshire (photo) / Bridgeman Images

KWE478248: Saint Gaugericus, Bishop of Cambrai, arriving at the city for his appointment, from 'Military and Religious Life in the Middle Ages' by Paul Lacroix, published London c.1880 (litho), French School, (19th century) / Bridgeman Images

TRK879558: Italy. Milan. Cathedral. Gothic. 14th century. Exterior. Detail. Facade. / Bridgeman Images

TRK879566: Italy. Milan. Cathedral. Gothic. 14th century. Exterior. Detail. Facade. Angel. / Bridgeman Images

TRK831887: Finalnd. Turku. Castle. / Bridgeman Images

TRK831889: Finalnd. Turku. Castle. / Bridgeman Images

TRK831899: Finalnd. Turku. Castle. / Bridgeman Images

TRK831902: Finalnd. Turku. Castle. / Bridgeman Images

TRK831750: Italy. Milan. Cathedral. Gothic. 14th century. Exterior. Facade. / Bridgeman Images

LLM964289: Leander sends a message of love to Hero (chromolitho), French School, (19th century) / Bridgeman Images

TRK697549: Italy. Cremona Cathedral. Northern transept. 13th century. Lions sculptures. / Bridgeman Images

TRK697028: Chastel Rouge or Qal’at Yahmur, Yahmur, Syria (photo) / Bridgeman Images

TRK697186: Left archivolt carved with the Heavenly Court, Portal of the Virgin, Cathedral of Notre Dame, Paris, France (photo) / Bridgeman Images

TRK697237: Monastery of Saint Paul, Penafiel, Spain (photo) / Bridgeman Images

PRZ702436: The Triumph of Charlemagne and the Christian Army (fresco), Schnorr von Carolsfeld, Julius (1794-1872) / Bridgeman Images

SGM439063: Church of Our Lady before Tyn, Prague, Czech Republic (photo) / Bridgeman Images

TRK1018115: Italy. Lucca. Cathedral of Saint Martin. Facade. / Bridgeman Images

SZT1076325: The Bratwurstglöcklein restaurant at the Moritz chapel opposite the Church of St. Sebald, Nuremberg, 1918 (b/w photo) / Bridgeman Images

UTD2841543: Saint Valery sur Somme / Bridgeman Images

UTD2842261: The castle high above the city of Lourdes / Bridgeman Images

UTD2842622: A medieval tower, the Stortovet at the city of Oslo / Bridgeman Images

LLM3093710: Meeting of Dante and Beatrice on the stairs of the Bargello in Florence (litho), Italian School, (20th century) / Bridgeman Images

DSP3250405: Delvin, Co Westmeath, Ireland, Delvin Castle (photo) / Bridgeman Images

DSP3250407: Fore Village, Co Westmeath, Ireland, Fore Abbey Ruin (photo) / Bridgeman Images

TRK3708210: Spain, Umayyad period, Medina Azahara (936-960) Capital in the Salon Rico (953-957) Andalusia. / Bridgeman Images

TRK3737371: Venice, Italy, Square and Basilica of St. Mark (engraving) / Bridgeman Images

PFH3614471: Italy: Bell tower of the Cathedral of Saint Mary of the Assumption (Duomo di Siena), Siena / Bridgeman Images

PFH3614475: Italy: 'Coronation of the Virgin' mosaic, upper facade, Cathedral of Saint Mary of the Assumption (Duomo di Siena), Siena / Bridgeman Images

PFH3614476: Italy: 'Presentation of Mary in the Temple' mosaic, upper left facade, Cathedral of Saint Mary of the Assumption (Duomo di Siena), Siena / Bridgeman Images

PFH3614479: Italy: Facade sculpture, Cathedral of Saint Mary of the Assumption (Duomo di Siena), Siena / Bridgeman Images

ARD2524460: Palazzo Abatellis, Regional Gallery of Sicily, Palermo, Sicily (photo) / Bridgeman Images