The coolest thing in Vienna was the Tech Museum, it is walking distance from Schonbrunn palace (pictured above). The tech museum was a lot like the Deutsches Museum in Munich, maybe even better! They had a great collection of just about every modern invention you can think of. Things like tooth brushes, heaters, vacuum cleaners, plumbing, elevators, steam engines, gas engines, turbines, electric motors, planes, helicopters, trains, motorcycles, lathes, CNC machines... any kind of machine you can think of was in this museum.