KWE2619009: Robert Edward Lee, from The Century Magazine, published 1887 (engraving) / Bridgeman Images

KWE2619018: Archibald Dixon, from The Century Magazine, published 1887 (engraving) / Bridgeman Images

POV2599878: Wild rabbit (Oryctolagus cuniculus), Whiteford National Nature Reserve, Gower, South Wales, United Kingdom (photo) / Bridgeman Images

POV2599899: Dew-dropped Kaffir lily, Schizostylis coccinea (photo) / Bridgeman Images

POV2599905: Printed circuit board from a computer (photo) / Bridgeman Images

POV2599914: Jackdaw (Corvus monedula) collecting nesting material by plucking hair from a resting cow, Pennard, Gower, South Wales, United Kingdom (photo) / Bridgeman Images

POV2599947: Mass of bottle screw tops in recycling container, Eder Valley Reservoir, North Hesse, Germany (photo) / Bridgeman Images

POV2599868: Malator, known as the 'Teletubby House', a low-impact earth-house at St. Bride's Bay, Druidston, Pembrokeshire Coast National Park, West Wales, United Kingdom (photo) / Bridgeman Images

POV2599871: Malator, known as the 'Teletubby House', a low-impact earth-house at St. Bride's Bay, Druidston, Pembrokeshire Coast National Park, West Wales, United Kingdom (photo) / Bridgeman Images

POV2599877: Rockrose, or 'Fire Dragon', Helianthemum apenninum (photo) / Bridgeman Images

POV2599886: Sunflower, Helianthus (photo) / Bridgeman Images

POV2599889: Poppy, Papaver somniferum (photo) / Bridgeman Images

POV2599910: Rainbow above woodland, near Betws-y-Coed, Snowdonia National Park, North Wales, United Kingdom (photo) / Bridgeman Images

POV2599931: Human skull with mala, prayer beads, on a plinth in the shrine room of a Buddhist monastery (photo) / Bridgeman Images

POV2599990: Three Grape Hyacinth (Muscari sp.) (photo) / Bridgeman Images

POV2599996: Dandelion (Taraxacum officinale) seedclock (photo) / Bridgeman Images

POV2600001: St. Oswald's Cross and St. Oswald's Church at Heavenfield pilgrimage site, St. Oswald's Way, near Chollerford, Northumberland, United Kingdom (photo) / Bridgeman Images

POV2599943: Stone spiral staircase, Salzmann factory, Kassel, Germany (photo) / Bridgeman Images

POV2599964: Full moon rising above grasses growing on a stone wall, Harnham, near Belsay, Northumberland, United Kingdom (photo) / Bridgeman Images

POV2599997: Columbine, or Granny's Bonnets (Aquilegia vulgaris) (photo) / Bridgeman Images

KWE2603430: Charles Gordon, 11th Marquess of Huntly, from Auld Acquaintance Further Reminiscences, published c.1929 (litho) / Bridgeman Images

DGC2607723: Anatomy class skeletons, Jefferson Medical College, Philadelphia. 1902 (b/w photo) / Bridgeman Images

KWE2619008: Trapeze artists in the 19th century, from The Century Magazine, published 1887 (engraving) / Bridgeman Images

KWE2619011: A dispatch rider during the American Civil War, from The Century Magazine, published 1887 (engraving) / Bridgeman Images

KWE2619026: Nathaniel Hawthorne, the Century Magazine, published 1887 (engraving) / Bridgeman Images

KWE2619029: Cassius Marcellus Clay, from The Century Magazine, published 1887 (engraving) / Bridgeman Images

HGP2607323: Byland Abbey, Yorkshire (photo) / Bridgeman Images

HGP2607332: Jervaulx Abbey, Yorkshire (photo) / Bridgeman Images

HGP2607371: Scarborough Parish Church, Yorkshire (photo) / Bridgeman Images

HGP2607322: Byland Abbey, Yorkshire (photo) / Bridgeman Images

HGP2607337: Martyrdom of St. Edmund, Pickering, Yorkshire (photo) / Bridgeman Images

HGP2607343: Middleham Castle, Yorkshire (photo) / Bridgeman Images

HGP2607346: Medieval wall painting of the Resurrection, Christ standing on stone sarcophagus, Pickering, Yorkshire (photo) / Bridgeman Images

HGP2607373: St. George and Dragon, medieval wall painting, Pickering, Yorkshire (photo) / Bridgeman Images

HGP2607379: Victorian postbox, Ryedale Folk Museum, Hutton le Hole, Yorkshire (photo) / Bridgeman Images

HGP2607345: North York Moors, National Park, Boundary Sign, Yorkshire (photo) / Bridgeman Images