The Vienna Woods (Wienerwald) were designated to the Biosphere Reserve by UNESCO in 2005. They cover about 9,900 hectares and encompass seven districts of the Austrian capital such as Hietzing, Währing, Döbling, Hernals, Penzing, Ottakring, and Liesing. The Vienna Woods is a habitat for 150 bird species and 2,000 plant species.
Walking and jogging paths, cafes and restaurants, as well as observation decks can be found on its territory. The Liechtenstein Castle, which is a 40-minute drive from the center of Vienna, is also located in the Vienna Woods.