In dark medieval times, every city had to defend itself. Buildings like Guard Tower enable soldiers to spot the enemy on time in order to make all necessary actions to properly prepare the city for attack. When the soldiers on the Guard Tower sound the alarm, town gates are being sealed and all who can fight equip themselves with weapons and readily await the battle to commence. Guard towers are built on the outskirts of a city, preferably on higher ground. These buildings have to be sturdy enough to withstand enemy’s cannon balls, stones thrown by catapults or even attacks by frenzied monsters such as Giants and Treeman. It has to be high enough so soldiers are able to see as much landscape as possible. Sometimes whole regiments of archers and other troops are stationed in one Guard Tower.