TRK6356044: Spain, Castile-Leon, Portillo, Portillo Castle or Castle of the Counts of Benavente, It was built between the 14th and 15th centuries, View of the tower / Bridgeman Images

HIM5263120: Gloucester Cathedral, Gloucestershire, c1870. The foundation stone of the cathedral was laid in 1089 and the church was consecrated in 1100. It did not actually become a cathedral until 1541, having previously been within the see of Worcester. The building is notable for its 225 foot high bell tower and its cloisters, the ceiling of which include the earliest example of fan vaulting in England. / Bridgeman Images

HIM5263128: Canterbury Cathedral, Kent, c1870. Canterbury Cathedral dates from 1070 with many subsequent alterations. The cathedral was the scene of the murder of Thomas a Becket, Archbishop of Canterbury, in 1170. Today the Cathedral is still the seat of the the Archbishop of Canterbury, first Primate of England and head of the Anglican church. / Bridgeman Images

LIS2651715: Study for The Founding of Prittlewell Priory (oil on panel), Sorrell, Alan (1904-74) / Bridgeman Images

EHT3620008: Interior view of the chancel, St Mary's Church, Kempley, Gloucestershire, 2010 (photo) / Bridgeman Images

EHT3710488: Kenilworth Castle, 1920 (b/w photo) / Bridgeman Images

DGA1131075: External view of tower in centre of transept of Metropolitan Cathedral-Basilica of Assumption of Our Lady of Valencia (13th-14th century), Valencia, Valencian Community, Spain / Bridgeman Images

DGA5653576: Norman Castle overlooking walled city, Melfi, Basilicata, Italy, 11th-13th century / Bridgeman Images

DPS3249683: Co Clare, Doolin Castle, Doolin (photo) / Bridgeman Images

DPS3249419: Abbeyknockmoy, Cistercian Abbey Of Knockmoy, Co. Galway, Ireland (photo) / Bridgeman Images

DPS3249425: Bantry House, Co. Cork, Ireland (photo) / Bridgeman Images

DPS3250089: The Norman Castle (1200 Ad), At Carrickfergus, Co Antrim, Ireland (photo) / Bridgeman Images

DPS3250093: Dunluce Castle At Sunset, Co Antrim, Ireland (photo) / Bridgeman Images

DPS3503873: Castle Roche, Near Dundalk, Co Louth, Ireland (photo) / Bridgeman Images

DPS3249763: Athenry Dominican Priory, Co Galway, Ireland Athenry, 1Remains Of Lancet Window From The 13Th Century Priory (photo) / Bridgeman Images

RAG493110: Mount Orgueil, Jersey (oil on canvas), Hewit, Forrest (1870-1956) / Bridgeman Images

HGP362710: Tantallon Castle (photo) / Bridgeman Images

MEP852242: Prefecture Palace in Ancona (Palazzo della Prefettura di Ancona), 14th Century / Bridgeman Images

DPS3249354: King John’S Castle, Co. Limerick (photo) / Bridgeman Images

DPS3249725: Enniskillen Castle, Enniskillen, Co Fermanagh, Ireland (photo) / Bridgeman Images

XEE4137077: Medieval architecture: Montee de la porte de l'Aude. Cite de Carcassonne, Aude (11), Languedoc Roussillon (Languedoc-Roussillon). Restoration by Eugene Viollet-le-Duc (Viollet le Duc) (1814-1879). Photography around 1910., French Photographer, (20th century) / Bridgeman Images

UIG557190: St. Luke's Church near Smithfield, Virginia. (photo) / Bridgeman Images

DGA574514: Austria, Vienna, facade of House of Teutonic Knights in Singerstrasse, where Wolfgang Amadeus Mozart lived for few weeks in 1781, engraving by Johann August Cirvinus / Bridgeman Images

DPS3249329: Dunluce Castle, Co. Antrim, Ireland (photo) / Bridgeman Images

UIG801510: The Qutub Minar, in Delhi, India. This 72.5 meters tall brick minaret, built in 1193 by Muslim Emperor Qutub-ud-din Aibek to commemorate the capture of Delhi, is notable for being one of the earliest and most prominent examples of Indo-Islamic architecture. It is surrounded by several other ancient and medieval structures and ruins, collectively known as Qutb complex. The complex is listed as a UNESCO World Heritage Site. It is one of the most popular tourist destinations in Delhi. February 4, 2010. (photo) / Bridgeman Images

TW3716225: Design for St Thomas's Church, c.1826 (w/c on paper), Dobson, John (1787-1865) / Bridgeman Images

MEP852241: Prefecture Palace in Ancona (Palazzo della Prefettura di Ancona), 14th Century / Bridgeman Images

SAP479118: Madonna and Child on the Central Pier of the Facade, Tarragona Cathedral, Spain, 2007 (photo) / Bridgeman Images

UIG808225: Saint May, Dr™me, Rh™ne-Alpes, France (photo) / Bridgeman Images

LLM3646301: Wiener Neustadt, Austria, birthplace of Maximilian I, Holy Roman Emperor (engraving), Burgkmair, Hans (c.1473-1531) (after) / Bridgeman Images

UTD2875291: Frauentor gate in the Southeast of the old Nuremberg city wall, Germany 1930s (b/w photo) / Bridgeman Images

UTD2875215: The Wertachbrucker Tor city gate at Augsburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2875290: Frauentor gate in the Southeast of the old Nuremberg city wall, Germany 1930s (b/w photo) / Bridgeman Images

UTD2875905: Old department store and dancing house at the Florinsmarkt market at Koblenz, Germany 1930s (b/w photo) / Bridgeman Images

DPS3256043: Limerick,Co Limerick,Ireland;King John's Castle (photo) / Bridgeman Images

DPS3249923: Glendalough,Co Wicklow,Ireland;Ruined Church (photo) / Bridgeman Images