Skt. Laurentii Kirke, The church of Sct. Lawrence, at Stændertorvet, was built around 1125 A.D. of travertine from the underground of Roskilde. During the reformation in 1536 the church was demolished. Only the tower was left, and is today the tower of the city hall.

The ruins are preserved 2 metres under the square Stændertorvet. They reveal the beautiful restored red and black clay tile floor and mediaeval fixtures of the church as well as archaelogical finds from the excavations.

The ruins can be accessed with a key available at the Tourist Information, Stændertorvet 1, Roskilde.