Watchtower
A watchtower or watch tower is a tower used for surveillance. They were used at city walls to see invaders, when they were far away, so the city could prepare for an attack. A watchtower is also used for watching over people (like a town or a city). Watchtowers were popular in the Middle Ages. They are still often used to watch over prisoners and make sure that they don't escape or leave the area. Forestry uses watchtowers to find fires before they become more dangerous.
Watchtower Media
A watchtower on the Great Wall of China
Saint Thomas Tower in Marsaskala, Malta
A reconstruction of a Roman watchtower in Germany
Għallis Tower, one of the 13 de Redin towers in Malta
Han dynasty watchtower near Dunhuang, Gansu, China
A modern example of a military watchtower. The example shown is a BT-11 found along the former Inner German Border between East and West Germany.
Non-military watchtower, used as a lamp post to illuminate during the night, at Banashankari temple, Karnataka, India
A guard tower at the C.A. Holliday Unit of a state prison in Huntsville, Texas
Justizvollzugsanstalt, Simonshöfchen in, Wuppertal
Great Tower Neuwerk built 1310 by Hamburg, Germany
