Hasselkopf
Hasselkopf is a mountain on the southern periphery of Braunlage, Germany. It is 612 m high. The hill is mostly covered in grass and undeveloped, but its northern slope has a short ski lift and can be used for downhill skiing in the winter months. On 7 May 1964, the hill was used by Gerhard Zucker to unsuccessfully attempt to demonstrate the use of mail rockets. One exploded in an accident, killing three.