I’d read and seen videos of the Danube’s low water level, so I knew about the remnants, some dangerous, from World War II, exposed to our view.
What I didn’t know was this, from Harper’s Weekly Review:
Europe’s biggest rivers recorded record-low water levels, exposing in the Danube River Nazi warships from Hitler’s Black Sea fleet, a German-military motorcycle, an undetonated 1,500-pound British bomb, and the remains of a woolly mammoth.