The small town on the northern edge of the Harz is considered the Rothenburg of East Germany. Within the medieval city walls there are are over 1,000 Tudor style houses dating back to the 14th to 19th century. After the cathedral treasure was returned to the Collegiate Church in 1993 Quedlinburg has been on the list of World Heritage Sites. The city is also a starting point for excursions into the Harz mountains. Highest point of the legendary woodlands is the Blocksberg where supposedly the witches dance during the night of 1 May.