This public square has served as Trier's main marketplace (temporary open-air market) since medieval times. The square is ringed with shops and St. Gangolf, the market church, stands at one end, with the long side parallel to the square. The church is accessed from the square by a small Baroque portal in between two of the shops. There are buildings from the Renaissance through 18th centuries, including townhouses like the Steipe (old banqueting house of the city councilors, 1430) and the Red House (1684). German language Wikipedia