Marktplatz is the main square in Solothurn, Switzerland, which began as a Roman settlement named Salodurum. During your visit, notice the unique way they have commemorated becoming the eleventh canton of the Swiss Confederation in 1481. Within the old town there are 11 fountains, 11 churches and 11 towers. And the Cathedral of St. Ursus in the background has 11 bells and 11 altars.