The Künstlerhaus Palais Thurn und Taxis in Bregenz, Austria, in Lego form. This building should not be confused with the Palais Thurn und Taxis in Frankfurt am Main, Germany, which was the Bundestag of the German Confederacy. Source.
The cover of Dubbie, the Double-Headed Eagle, a children's book by Eduard Habsburg-Lothringen, in which Dubbie journeys to Vienna in search of his kinfolk. I offer this as evidence the Habsburgs are playing the long game. Source.
A member of the Polish Piast dynasty, Cymburgis married Ernest the Iron, Duke of Austria, in 1412. She is the ancestor of all modern Habsburgs, and could crack nuts with her bare hands.
The Hofkirche, Innsbruck, contains the tomb of Emperor Maximilian I, plus a couple dozen statues of his illustrious relatives. These three are Albrecht II of Austria (1298-1358), Rudolf I of Habsburg, King of the Romans (1218-1291), and Philip I of Castile (1478-1506). Source.