GRL6436107: Battistero di San Giovanni / Bridgeman Images

GRL6436119: Saint Reparata (mosaic) / Bridgeman Images

ITR6435721: floor of the ringers of the tower of the Mutte. St Stephen's Cathedral in Metz, 12th-15th Century (photo) / Bridgeman Images

GRL6435754: Siena, Duomo (Cathedral): stucco aedicule with high-relief, an old copy of the “Expulsion from the Garden of Eden”, sculpted by Jacopo della Quercia for the Fonte Gaia. / Bridgeman Images

GRL6435947: Piccolomini Library: choir book, cod. 23.8, ff. 66r with “The Ascension of Christ”, by Girolamo da Cremona. Detail. / Bridgeman Images

GRL6436094: Battistero di San Giovanni / Bridgeman Images

GRL6436109: Battistero di San Giovanni / Bridgeman Images

ITR6435675: west rose window. St Stephen's Cathedral in Metz / Bridgeman Images

ITR6435682: Exterior detail. St Stephen's Cathedral in Metz, 12th-15th Century (photo) / Bridgeman Images

ITR6435694: Exterior detail. St Stephen's Cathedral in Metz, 12th-15th Century (photo) / Bridgeman Images

GRL6435747: The Piccolomini Library, north-east wall: two tritonesses with entwined tails, grisaille below the pilaster between the fourth story and the fifth one. / Bridgeman Images

GRL6435946: Piccolomini Library: choir book, cod. 23.8, ff. 100v with “The Pentecost”, by Girolamo da Cremona. Detail. / Bridgeman Images

GRL6435986: Piccolomini Library: choir book, cod. 26.R, ff. 29v-30r with “Christ and all Saints”, by Giovanni di Taldo. / Bridgeman Images

GRL6436016: The Piccolomini Library: “The Graces”, marble sculpture, Roman Age. Back. / Bridgeman Images

GRL6436081: Battistero di San Giovanni / Bridgeman Images

GRL6436084: Battistero di San Giovanni / Bridgeman Images

GRL6436087: Battistero di San Giovanni / Bridgeman Images

GRL6436117: Battistero di San Giovanni / Bridgeman Images

GRL6436136: Battistero di San Giovanni / Bridgeman Images

GRL6436145: Museo dell'Opera del Duomo / Bridgeman Images

HFE6436627: phlox divaricata canadensis / Phlox divariqué / Plow du Canada / Canadian phlox / Bridgeman Images

HFE6436611: Flowers and pistil of Saffron Crocus sativus / Bridgeman Images

HFE6436626: Amaryllis sonatini Orange Rascal Hippeastrum / Bridgeman Images

DGC6437163: rescued crew of HMS Ark Royal after the torpedo attack by a German Submarine, 1941 (photo) / Bridgeman Images

CCI6437593: Cars Hotchkiss. c.1930 (engraving) / Bridgeman Images

CCI6437637: View of the Palais d'Orleans (Senat) in the Jardin du Luxembourg, Paris. 17th century (engraving) / Bridgeman Images

CCI6437650: Interior of the Carmelite church in Bagneres de Bigorre. ca. 1870 (Engraving) / Bridgeman Images

CCI6437662: Abbey of Bisham, Commandery of the Templars, Earl of Berkshire. ca 1850 (Engraving) / Bridgeman Images

CCI6437674: Mud volcanoes in Turbado, Colombia. ca. 1830-1840 (Engraving) / Bridgeman Images

CCI6437689: The Chimborazo volcano from the plateau of Tapia, Ecuador. circa 1840 (Engraving) / Bridgeman Images

CCI6437666: View of Mont Pride, Jersey. ca 1850 (Engraving) / Bridgeman Images

CCI6437694: Natural Bridges of Icononzo, Colombia. ca. 1840 (Engraving) / Bridgeman Images

CCI6437726: Railways. circa 1890 (poster) / Bridgeman Images

CCI6437854: Couple kissing. circa 1920 (illustration) / Bridgeman Images

CCI6437852: Woman on the Pont au Change in Paris, behind her the Seine and the Conciergerie. 1921 (illustration) / Bridgeman Images

CCI6438067: Couples spicking nesting at the edge of a river. circa 1910 (Illustration) / Bridgeman Images