DGA627051: Right door of the Notre-Dame Cathedral of Reims, Reims, Champagne-Ardenne, France, 13th century / Bridgeman Images

DGA628178: Angel, wooden relief from the upper chapel of the Holy Chapel, Paris, Ile-de-France, France, 13th century / Bridgeman Images

DGA628188: Angel, wooden relief from the canopy, upper chapel of the Holy Chapel, Paris, Ile-de-France, France, 13th century / Bridgeman Images

DGA628189: Angel, wooden relief from the canopy, upper chapel of the Holy Chapel, Paris, Ile-de-France, France, 13th century / Bridgeman Images

DGA646947: Relief depicting male face, Reinhardstein Castle, Waimes. Belgium, 14th century. / Bridgeman Images

DGA1090227: Old ruins of a castle, Arlempdes Castle, Auvergne, France / Bridgeman Images

DGA1090125: Italy, Marche region, Mondavio, Fortress / Bridgeman Images

DGA924724: Fountain of 99 Spouts (13th century), L'Aquila, Abruzzo, Italy, Detail of masks / Bridgeman Images

DGA924728: Fountain of 99 Spouts (13th century), L'Aquila, Abruzzo, Italy, Detail of mask / Bridgeman Images

DGA924730: Fountain of 99 Spouts (13th century), L'Aquila, Abruzzo, Italy, Detail of mask / Bridgeman Images

DGA924731: Fountain of 99 Spouts (13th century), L'Aquila, Abruzzo, Italy, Detail of mask / Bridgeman Images

DGA1137875: Italy; Sicily region; Egadi Islands; Favignana Island; castle (photo) / Bridgeman Images

GBW884058: A French captain of the U.S. Army leaving the cathedral, while the canon Lepoil moves towards it, Manche, Normandy, France, June 1944 (b/w photo), American Photographer, (20th century) / Bridgeman Images

SZT5179448: The Tharandt Castle in Tharandt, 1907 / Bridgeman Images

LFG3898571: Friday Mosque, Isfahan Province, Isfahan, Iran, 2015 (photo) / Bridgeman Images

EHT3551376: The Central Buildings of Sherborne Old Castle, Dorset, UK (w/c on paper), Corke, Philip (20th Century) / Bridgeman Images

LLM5229573: The Cloth Hall, Ypres, Belgium (b/w photo), Belgian Photographer, (20th century) / Bridgeman Images

GCL3127587: BRUNELLESCHI: PAZZI PLAN Modern floor plan for the Pazzi Chapel at the Palazzo Pitti, Florence, Italy, by Filippo Brunelleschi. / Bridgeman Images

GCL3389486: ENGLAND: WELLS CATHEDRAL The Gothic cathedral at Wells, Somerset, England. Photograph, mid-20th century. / Bridgeman Images

HGP362820: St. Patrick's Island and Peel Castle (photo) / Bridgeman Images

HGP362723: Bamburgh Castle, Northumberland (photo) / Bridgeman Images

NUM407115: View of a house (photo) / Bridgeman Images

SAP492227: Portal of the Golden Virgin, South Transept, Cathedral of Notre Dame, Amiens, France, 2010 (photo) / Bridgeman Images

SAP492228: Portal of the Golden Virgin, South Transept, Cathedral of Notre Dame, Amiens, France, 2010 (photo) / Bridgeman Images

DON279164: Arundel Castle, South Front , showing south west tower and dining room (photo) / Bridgeman Images

LLM5996880: Norman door, Church of St Mary the Virgin, Iffley, Oxfordshire (b/w photo), English Photographer, (20th century) / Bridgeman Images

UIG1566394: Arches of the Corridor Along the Cloister in the Mainzer Dom (Mainz Cathedral Or St. Martin's Cathedral), Mainz, Germany (photo) / Bridgeman Images

UIG1566268: St Mary's Cathedral in Tallinn, Estonia (photo) / Bridgeman Images

UIG1566269: St Mary's Cathedral in Tallinn, Estonia (photo) / Bridgeman Images

UIG1566445: Porta Nigra Roman Gateway, Trier, Rhineland-Palatinate, Germany (photo) / Bridgeman Images

UIG1566292: St. Nicholas Church in Tallinn, Estonia (photo) / Bridgeman Images

UIG1565961: Remains of the Abbey Church in Lorsch, Germany (photo) / Bridgeman Images

UIG1565941: Mansard Roof of the Konigshalle Or Torhalle (King's Hall Or Gatehouse) to the Abbey and Altenmünster of Lorsch at Lorsch in Germany (photo) / Bridgeman Images

UIG1569119: Bronze Statue of King Stephen I of Hungary at the Halaszbastya Or Fisherman's Bastion, Budapest, Hungary (photo) / Bridgeman Images

UIG1566807: St. Vitus Cathedral, Prague, Czech Republic (photo) / Bridgeman Images

UIG1566387: Mainzer Dom (Mainz Cathedral Or St. Martin's Cathedral), Mainz, Germany (photo) / Bridgeman Images