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An open-air free music festival that takes place every June, and one of the largest of its kind in Europe. The festival is spread over an area of 6.5 km² with a number of music stages, hosting mostly Austrian and European pop musicians. Food and drink stands offer a range of dishes, including Austrian and vegetarian.
The Donauinselfest is a free open-air music festival which occurs annually at Donauinsel in Vienna, Austria. The festival is hosted by SPÖ Wien. It is the largest open-air music festival in the world, with around 3 million visitors over 3 days.
Danube Tower
An observation tower with spectacular view over the entire city. It also houses two rotating restaurants.
Vienna International Centre
This complex was completed in 1979, and is the seat for such international agencies as the IAEO, UNHCR, UNOV, and UNODC. General tours are offered for the public, as well as tours for those interested in human rights or arts.
Donaucity-Kirche
A modern Catholic church designed by the internationally-renowned Austrian architect Heinz Tesar.
Tallest building of Austria, with an "observation deck" at 207 m.
Seestadt
A new city area under construction. One of the biggest development areas in Europe, it will accommodate 20.000 inhabitants by 2025. 5,000 are living on the grounds of a former airfield. The modern architecture combines high living quality and state of the art building techniques and some notable buildings like the tallest wooden house with 85 m, which is under construction and some sophisticated green space and an artificial lake suitable for swimming.
The Flower Gardens of Hirschstetten are run by the City of Vienna. The Gardening Department fosters their plants, which are then used in public gardens and parks. In the public section, several themed gardens (Chinese, Mexican, etc.) are installed; there is a preserved farm with petting zoo, an educational beehive, some turtles, owls and wild cats. For children, there is a big insect-themed playground available. Between Oct and March, only the orangerie is open for public. In front of the orangerie, there are popular Christmas and Easter markets during the weeks before the respective holidays.