You can’t go to Vienna and not do something music related. In this case, it’s visiting the Haus der Musik. I’ve never had this much fun in a museum before. With interactive exhibits, real surround sound, audio illusions, and a womb room (yes, it’s a weird as it sounds), you’re guaranteed to lose a few hours in here.
Ps. Excuse my incognito photo, this guy killed it on the piano!