Insanity, madhouse and lunatics

 Bosch, The Garden of Earthly Delights, detail, 1510

William Kurelek, The Maze, 1971

William Hogarth, A Rake's Progress, 1732

Francisco Goya, Casa de locos (Madhouse), 1819

James Norris, Bethlem Patient, 1815

Theodore Gericault, The Mad Woman, c. 1819-1822

Hughes Merle, The Lunatic of Étretat, 1871

Alfred Kubin, Madness, 1914