A small open building in the center of Geneva's old town, where you can find cannons dating back to the 17th century. On the walls of the building are three exquisite mosaics designed by the famous artist and painter, Alexandre Cingria. The pictures and cannons show the history of the city and some of the big events that affected it. If you are interested in history, and would like to learn about the history of the city of Geneva, head to this wonderful landmark in the city.