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

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

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

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

MAA2956831: The Lady Chapel and Apse of Bourges Cathedral, 1899 (w/c on paper), Rooke, Thomas Matthews (1842-1942) / Bridgeman Images

XOS1766257: January and February from Los doce meses del año (The Twelve Months of the Year), 1650-99 (oil on canvas) , Espinosa, Antonio de (fl.1650-99) / Bridgeman Images

SZT5978807: King Cyrus riding on the bear, main facade, St Peter's Cathedral, Regensburg, 14th century, 20009 (photo) / Bridgeman Images

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

TRK7144420: Menorca, Alaior. Torre d'en Galmés talayotic settlement. / Bridgeman Images

TRK7144419: Menorca, Alaior. Torre d'en Galmés talayotic settlement. / Bridgeman Images

MEP852267: Prefecture Palace in Brescia (Palazzo della Prefettura di Brescia), 13th Century / Bridgeman Images

HGP362708: Tantallon Castle (photo) / Bridgeman Images

HGP362709: Tantallon Castle (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

MEP852242: 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

DPS3256427: Devenish Monastic Site, Co Fermanagh, Ireland; High Cross And Round Tower (photo) / Bridgeman Images

HIM5262511: Rochester Castle, Kent, mid 19th century. Built on the site of a Roman fortification, this Norman castle was an important royal stronghold. It was besieged twice by rebel barons, in 1215 and 1264. The keep was begun in 1127 by William de Corbeil, Archbishop of Canterbury, and is the tallest in England. / Bridgeman Images

HIM5263121: Westminster Abbey, London, c1870. A Benedictine monastery was founded on this site in the 7th or 8th century. Edward the Confessor (1003-1066) rebuilt an abbey on this site shortly before his death. William the Conqueror was crowned here on Christmas Day 1066, and it has been the setting for every English coronation since, except for those of Edward V and Edward VIII. The present building dates from 1245. / Bridgeman Images

HIM5293780: Battle Abbey, 12th century, (c1990-2010). Artist: Peter Urmston, Urmston, Peter (20th Century) / Bridgeman Images

HIM5293834: Clifford's Tower, late 11th century, (c1990-2010). Artist: Terry Ball, Ball, Terry (20th Century) / Bridgeman Images