a tall, often cylindrical structure made of stone, brick, metal, or wood typically with steps leading up to a platform an open or enclosed platform with a railing a spiral staircase or ladder to access the platform a window or lookout point on the platform a bell, flag, or other signal device on the platform
watchtower which is a tall, often cylindrical structure watchtower which has made of stone, brick, metal, or wood watchtower which typically with steps leading up to a platform watchtower which is an open or enclosed platform with a railing watchtower which is a spiral staircase or ladder to access the platform watchtower which is a window or lookout point on the platform watchtower which is a bell, flag, or other signal device on the platform