Old market square – the main city square of toruń, founded between 1252 and 1259 for years. In architectural terms toruń – not a typical medieval town. Until the merger of the Old market with a New market in town at the same time there were two main squares.

Starting from the year 1259, in the centre of the Old market began to appear different building. At the end of the thirteenth century was built the old town hall is a vivid example of the architecture of medieval Europe. In addition to administrative duties, the town Hall and was also a trading platform. Here were located the shops of shoemakers, weavers, there were sales of products and breads. The building is in the style of "brick Gothic" during its existence has undergone several stages of restructuring. In the eighteenth century Hall acquired a Baroque appearance. The current form of the town Hall is largely associated with large-scale construction projects in 1391-1399 years. Then destroyed the old commercial building, and the administrative, commercial and judicial systems were combined in one building, which was a unique solution to Europe at the time. Town hall in the form of four integrated buildings with a courtyard, had a rectangular shape with dimensions of 44 to 52 metres. Today it is a Museum. In front of city Hall in the square is a monument to Nicolaus Copernicus.

Life on the Old market was in full swing. Here read Royal decrees, passed the holidays, staged executions, executions of the punishment of the pillory. Today, the area is concentrated several important urban attractions: Arthur's court, Star house, Church of the Holy spirit, and the old post office building.