...e 14th century, leans dangerously indeed over the Blau (a tributary to the Danube). In 1620, the leaning position had to be corrected in a fundamental renewa Image:ulm-august-2012-5.jpg|A zoom on the library, with the Danube in background.

The [[river]] '''''Isar''''' is a tributary to the [[Danube]] flowing in [[Tyrol]], [Austria] and [[Bavaria]], 295 km in length from th

...[Austria]] and [[Germany]], a 518km and one of the main tributary to the [[Danube]] which it meets in [[Passau]]. Till then, it defines much of the frontier