Graz Highlands Passail Basin, the adjacent Semriach Basin to the southwest and the Teichalm region to the north. The Graz Highlands are bounded: In the south and southeast the Graz Highlands transition into the East Styrian Hills and Graz Basin. The most important summits are the: Graz Highlands The Graz Highlands or Graz Mountains () are a low mountain range north of the Styrian state capital of Graz in Austria. It is part of the Central Alps and forms the start of the Prealps East of the Mur. From a geological perspective, regions on the west bank of the Mur, which are
Schlossberg (Graz) ruined bastions is the "Kasemattenbühne", an open-air stage for concerts and performances. Below the Schlossberg hill is an extensive system of tunnels, which were created during the second world war to protect the civilian population of Graz from aerial bombing. Some of these tunnels are still accessible, including a passage from Schlossbergplatz to Karmeliterplatz, and a grotto railway for children. Also in the tunnel complex is the "Dom im Berg", which was expanded in 2000 to provide a venue space for up to 600 people. The summit of the hill is linked to the city centre by various steep paths