"A watchtower is a type of fortification used in many parts of the world. It differs from a regular tower in that its primary use is ...
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military and from a turret in that it is usually a freestanding structure. Its main purpose is to provide a high, safe place from which a sentinel or guard may observe the surrounding area. In some cases, non-military towers, such as religious towers, may also be used as watchtowers." - (en.wikipedia.org 29.02.2020)
