The District Museum of Mariahilf, on Mollardgasse street, is dedicated to, inter alia, focusing Ratzenstadl (Magdalenengrund), Theater an der Wien, and the Palais Kaunitz-Esterhazy. In the same house is also the Phonographic Vienna Museum, which deals with the history of the phonograph, also as the Glass Museum Mariahilf. A former flak tower is home to the Haus des Meeres ("house of the sea"), whose biggest attractions of the 2007 opening, included a 300,000 liter shark tank. On Haydngasse street is located the Haydn-House of the composer Joseph Haydn, acquired in 1793 and inhabited until his death in 1809. Today, the house is a branch of the Vienna Museum. Other museums in Mariahilf are the Kaffeemuseum (coffee museum) with numerous exhibits on the topic of coffee, and the Sanitärhistorische Museum (Sanitary Historical Museum). Notable residents Victor Adler - Austrian Social Democratic leader Ludwig Anzengruber - Austrian dramatist, novelist and poet Otto Bauer - Austrian Social Democrat Ludwig van Beethoven - German composer Robert Bleichsteiner (1891-1954) ethnologist Elfi von Dassanowsky - Austrian-American singer, pianist, film producer and humanitarian Fanny Elssler - Austrian ballerina Joseph Haydn - composer Hans Krankl - Austrian former professional footballer Franz Lehár - composer Siegfried Marcus - inventor and automobile pioneer Carl Millöcker - Austrian composer of operettas and conductor Ferdinand Raimund - actor and dramatist Emanuel Schikaneder - German impresario, dramatist, actor, and singer; librettist of Mozart's opera The Magic Flute and the founder of the Theater an der Wien. August Siccard von Siccardsburg - Austrian architect, designed the Vienna State Opera Michael Thonet - German-Austrian cabinet maker Eduard van der Nüll - Austrian architect, designed the Vienna State Opera Oskar Werner - Austrian actor Katharina Mazepa - Austrian model Adolf Hitler - Austrian-born German politician and the leader of the Nazi Party Notes References "Wien - 6. Bezirk/Mariahilf", Wien.gv.at, 2008, webpage (15 subpages): Wien.gv.at-mariahilf (in German). Ernest Blaschek (Hg.): Mariahilf einst und jetzt (Mariahilf once and now). Gerlach & Wiedling, Vienna 1926. Felix Czeike: Wiener Bezirkskulturführer: VI. Mariahilf (Vienna Cultural Leader: VI. Mariahilf). Jugend und Volk, Vienna 1981, . Kunsthistorische Arbeitsgruppe GeVAG (Hg.): Wiener Fassaden des 19. Jahrhunderts: Wohnhäuser in Mariahilf (Vienna of the 19th Century: Residences in Mariahilf). Böhlau, Vienna 1976, . Carola Leitner (Hg.): Mariahilf: Wiens 6. Bezirk in alten Fotografien (Vienna's 6th District in Old Photographs). Ueberreuter, Wien 2007, . Susanne Schestak-Hörschläger: Mariahilf – die Wiege der Arbeiterbewegung: Geschichte der Sozialdemokratie in Mariahilf