It is written in the chronicles that Kiek in de Kök was the most powerful cannon tower in 16th-century Northern Europe. Tower is situated on the slope of Toompea Hill.
The round cannon tower was built in the latter part of the 15th century. It's height is 38 meters and its walls are 4 meters thick. The tower was just high enough that its guards had a view into the kitchens of neighbouring buildings. Of course the view also extended to the enemy’s rear. The tower’s name, "peek in the kitchen", comes from its height.