سیاهچال

Also known as oubliette, dungeons

right|thumb|The dungeons of Blarney Castle, Ireland A dungeon is a room or cell in which prisoners are held, especially underground. Dungeons are generally associated with medieval castles, though their association with torture probably derives more from the Renaissance period. An oubliette (from the French , meaning 'to forget') or bottle dungeon is a basement room which is accessible only from a hatch or hole (an angstloch) in a high ceiling.