The town centre retains many important historic buildings and much of its ancient townscape. Notable places in Halberstadt include Halberstadt Cathedral, the Church of Our Lady ("Liebfrauenkirche") and St Martin's, churches built in the 12th and 13th centuries. Halberstadt is the site of the first documented large, permanent pipe organ installation in 1361. The cathedral is notable among those in northern European towns in having retained its medieval treasury in virtually complete condition. Among its treasures are the oldest surviving tapestries in Europe, dating from the 12th century. The town is also a stop on the scenic German Timber-Frame Road