The former infantry barracks in Fredrikstad’s Old Town were inaugurated back in 1788. The tall brick building, which stands south of the main square, is said to be one of best examples of military architecture in Norway. The barracks were built using the calendar plan, with the 4 entrances representing the seasons, the 12 chimneys the months of the year, the 52 rooms the weeks of the year, the 365 windows the number of days in a calendar year, the 24 panes in each window the hours of the day, and the 60 doors the minutes in an hour (although some alterations have obviously taken place over the years). The building, which was used by the military until as recently as 2002, today houses Fredrikstad Internasjonale Skole (FRIS).