On the west side of the Markt stands the Renaissance Delft City Hall (Stadhuis). Rebuilt in the 17th century on the site of the original 13th-century Town Hall, this impressive structure retains one surviving component of its predecessors: the 15th-century stone tower known as Het Steen, richly decorated with pilasters and sculptures and a small gable with a figure of Justice.Interior highlights are its many handsomely decorated rooms, including the Orange Gallery and the Council Chamber, along with numerous fine paintings from the 16th to 18th centuries. The building's old prison, used to hold the assassin of William the Silent, can be visited as part of a guided tour and contains an interesting collection of old torture devices.