ert’s Hotel 182 Himalayas 55 hippocampus 11, 32 Hitler, Adolf 213 Hoane, Joe 5 Hodges, Wilfrid 150 H6f6i House 79, 80 Hofstadter, Douglas xi, 49, 310 Hogarth, Mark 280 Hole in the Wall Project 35 Holmes, Sherlock 148 hologram 290 Hong Kong 88 horizontal abstraction 266 Horn, John 29 Hounsfield, Sir Godfrey