Photo: Geiserich77, CC BY-SA 3.0 via Wikimedia Commons
Dating back to the times of Roman settlement in Vienna, this is the oldest neighbourhood of the Döbling district and is famous for its vineyards and "Heurige" (Austrian wine taverns).
Grinzing was an independent municipality until 1892 and is today a part of Döbling, the 19th district of Vienna.
Vienna Technical Museum
This museum exhibits machines, transportations, electronic equipment, and the like from their first design up to their current form. The museum is huge at 22,000 m² and requires at least two hours to go through.
Opened in 1907 as part of the largest mental hospital and sanatorium of its time in Europe, this Art Nouveau church was constructed by the Viennese master architect Otto Wagner, and is the most well-known example of Jugendstil sacral architecture.
Ernst Fuchs Museum
You can see his private lodging in a very eccentric design. The villa is in the woods. In the rooms some paintings of Fuchs are exhibited, a painter who bought the house from the Wagner family. His paintings were surprisingly influenced by the style of the villa.
Built between 1927 and 1930 by the Otto Wagner's student Karl Ehn, the Karl Marx-Hof is a public housing complex (called "Gemeindebau" in Vienna), from the time of the social-democratic public housing programme during Austria's First Republic. With its 1382 Apartments and roughly 1,1 km in length, Marx-Hof is the world's longest contiguous public housing complex and probably Vienna's most famous "Gemeindebau". The permanent exhibit Red Vienna (in Wash House #2) is devoted to the history of Red Vienna, a period of one-party rule by the Social Democrats from 1919-1934. The non-exhibit parts of the building are still used as housing, so please respect the residents' privacy. Guided tours (German only) are offered on Sundays at 13:00, with no reservations required.
Haus des Heiligenstädter Testaments / Beethoven House
One of Beethoven's many residences within the city. While living here he composed his Symphony No. 2 in D major (Op. 36), as well as several other works.
A lovely park, inaugurated in 1888 by Austrian emperor Franz Joseph. The park is at the site of and named after a Turkish entrenchment ("Türken-Schanze") of the first Turkish siege on Vienna in 1529. It is close to the University of Agriculture, and features a variety of botanic rarities from all continents.