The Vienna Woods are a forested highland region spanning areas northwest and southwest of Vienna, Austria's capital. Crossed by trails, they encompass vineyard towns like Perchtoldsdorf. The summit of Kahlenberg in the north offers views of Vienna and the Danube River. Stift Heiligenkreuz is a 12th-century abbey to the southwest. Farther southwest, trails lead to cliffs and views of the Alps from Peilstein mountain.