Watchtowers are tall structures designed to provide a vantage point for surveillance and observation. They are often used in military settings, as well as for fire lookout purposes in forests. The height of a watchtower allows observers to see over long distances, making it easier to spot potential threats or hazards. In addition to military and fire safety uses, watchtowers can also be found in historical contexts, such as in ancient fortifications or castles. They serve as a symbol of vigilance and protection, often associated with guarding important locations or resources.