1) Lake of Saxony-Anhalt 
[lake] The Lake Arend is a natural lake in the Altmark region, northern Saxony-Anhalt, Germany. It is 23.3 m above sea level, and its area is 5.14 km², its depth nearly 50 m. It is the largest and deepest natural lake in Saxony-Anhalt. The like lies on top of a salt dome and developed by repeated caving-in events that continued into histor...