The exhibition in a simple way explains the most important architectural concepts and terminology related to the early medieval stone architecture. Based on the examples of stone buildings from the territory of Poland dating from the tenth century to the first half of the thirteenth century. One of the most interesting objects is a copy of Gniezno Doors with representations of the life and martyrdom of St. Adalbert and a copy of Płock Doors of the twelfth century. (today present in the orthodox church of St. Sophia in Novgorod the Great).