Housed in the Narrenturm (Fool’s Tower; 1784), which served as an insane asylum from 1784 to 1866 and is now part of the Alten AKH complex, the Pathological Anatomy collection is wall-to-wall quease, with medical oddities and abnormalities preserved in jars of formaldehyde, plus the odd model depicting one grisly disease or another. Guided tours of the highlights last 45 minutes. Despite its troubled origin, the Narrenturm is a delightfully circular, neoclassical design by the Franco-Austrian Isidore Canevale (1730–86).