XKH150949: The upper reaches of the Alster, c.1834-35 (oil on paper mounted on board), Stuhlmann, Heinrich (1803-86) / Hamburger Kunsthalle, Hamburg, Germany / Bridgeman Images

XKH150951: Pheasants, 1873 (oil on canvas), Truebner, Heinrich Wilhelm (1851-1917) / Hamburger Kunsthalle, Hamburg, Germany / Bridgeman Images

SJS150966: Architectural Ruins, 1765 (gouache on paper), Clerisseau, Charles Louis (1721-1820) / Courtesy of the Trustees of Sir John Soane's Museum, London / Bridgeman Images

MGS149639: Friar of Pisco, 1828 (w/c on paper), Wood, Carlos D. (1793-1856) / Private Collection / Bridgeman Images

XJL149761: Allegorical scene depicting a falcon and an olive branch, from the exterior of one of the 14 buildings, built 1931-40, American School, (20th century) / Rockefeller Center, Manhattan, New York City, USA / Bridgeman Images

MGS149658: City of Acheen, North West Coast of Sumatra, 1829 (w/c on paper), Willis, William Alexander (fl. 1811-44) / Private Collection / Bridgeman Images

XJL149768: Statue of Mohandas (Mahatma) Gandhi (1869-1948) (bronze), American School, (20th century) / New York City, New York, USA / Bridgeman Images

ILN149793: Portrait of Lord Alfred Douglas (Bosie) (1870-1945) (b/w photo), English School, (20th century) / The Illustrated London News Picture Library, London, UK / Bridgeman Images

NYH149686: The Nun, c.1836 (oil on canvas), Flagg, George Whiting (1816-97) / Collection of the New-York Historical Society, USA / Bridgeman Images

NYH149691: Portrait of a lady sleeping, c.1834 (oil on wood panel), Flagg, George Whiting (1816-97) / Collection of the New-York Historical Society, USA / Bridgeman Images

FFA149840: Black in the Middle, c.1929-30 (collage) (b/w photo), Hoech, Hannah (1889-1978) / Private Collection / Bridgeman Images

FFA149847: And if you think the moon goes under, 1921 (collage), Hoech, Hannah (1889-1978) / Private Collection / Bridgeman Images

FFA149866: Black Form (The Negative), 1919 (collage), Hoech, Hannah (1889-1978) / Private Collection / Bridgeman Images

XKH150165: 1/4 du Plafond de la Premiere Biennale de Paris, 1959 (mixed media on canvas), Dufrene, Francois (1930-82) / Hamburger Kunsthalle, Hamburg, Germany / Bridgeman Images

XKH150174: Assemblage, 1963 (mixed media), Kopcke, Arthur (1928-77) / Hamburger Kunsthalle, Hamburg, Germany / Bridgeman Images

FFA151337: Martha (examining her hands), 1925 (etching) (b/w photo), Hubbuch, Karl (1891-1979) / Private Collection / Bridgeman Images

FFA151340: The Unknown, c.1929 (oil on canvas) (b/w photo), Hubbuch, Karl (1891-1979) / Private Collection / Bridgeman Images

FFA151344: Arthur (crayon on paper) (b/w photo), Hubbuch, Karl (1891-1979) / Private Collection / Bridgeman Images

FFA151348: Jeanette enjoys a discussion (oil on canvas) (b/w photo), Hubbuch, Karl (1891-1979) / Private Collection / Bridgeman Images

FFA151351: Four women in the cafe, c.1928 (oil on canvas) (b/w photo), Hubbuch, Karl (1891-1979) / Private Collection / Bridgeman Images

FFA151352: Nude in Bauhaus Chair, c.1925 (crayon, ink and w/c on paper) (b/w photo), Hubbuch, Karl (1891-1979) / Private Collection / Bridgeman Images

FFA151354: In the Studio, 1925 (pencil and w/c on paper) (b/w photo) (see 151338), Hubbuch, Karl (1891-1979) / Private Collection / Bridgeman Images

FFA151356: Lissy in a fur coat, c.1930-32 (oil on canvas), Hubbuch, Karl (1891-1979) / Private Collection / Bridgeman Images

FFA151370: Untitled, 1926 (oil on canvas), Ernst, Max (1891-1976) / Private Collection / Bridgeman Images

FFA151378: Pressing machinery, 1979 (acrylic on board), Estes, Richard (b.1932) / Private Collection / Bridgeman Images

FFA151233: Mizpah (Requiem for Juliet) 1985 (oil on canvas), Bellany, John (1942-2013) / Private Collection / Bridgeman Images

FFA151235: The Encounter, 1989 (w/c on paper), Bellany, John (1942-2013) / Private Collection / Bridgeman Images

XKH151396: The Stonewalls and Towers of Nepi, 1807 (pencil on paper), Faber, Joachim (1778-1846) / Hamburger Kunsthalle, Hamburg, Germany / Bridgeman Images

FFA151241: Celtic Fury (oil on canvas), Bellany, John (1942-2013) / Private Collection / Bridgeman Images

JB151408: South-west view of Sherborne Old Castle, built in mid-12th century (photo) / Sherborne, Dorset, UK / Bridgeman Images

XKH151660: The Businessman, Carl August Staegemann (1803-64) (oil on canvas), Steffeck, Carl Constantin (1818-90) / Hamburger Kunsthalle, Hamburg, Germany / Bridgeman Images

XKH151669: Self Portrait, 1856 (oil on canvas), Schneider, Robert (1809-85) / Hamburger Kunsthalle, Hamburg, Germany / Bridgeman Images

HLK151701: Thistles (oil on canvas), Kessel, Jan van, the Elder (1626-79) / Holkham Hall & Estate, Norfolk, England / Bridgeman Images

HAI150585: Spanish Farmhouse (oil on canvas), Hains, Eric (1913-2005) / Private Collection / Bridgeman Images

IAP150599: Anubis and Charon, 1997 (mixed media on panel), Gollon, Chris / Private Collection / Bridgeman Images

AIG150605: Egypt, 1922 (colour litho), Parrish, Maxfield Frederick (1870-1966) / National Museum of American Illustration, Newport RI, and American Illustrators Gallery, New York, NY / Bridgeman Images