Spaces of experience : art gallery interiors from 1800 to 2000 The spectator as citizen: the National Gallery in London in the early nineteenth century Interiority and intimacy: colour vision and the display of art in German museums around 1900 Exteriority and exhibition spaces in Weimar Germany The spectator as educated consumer: the Museum of Modern Art in New York in the 1930s The dilemma of the modern art museum: showing art at the end of the 20th century The museum and the new media