In Vienna, a visionary example of dealing with urban floods

Why they don't add maps?!

More info in https://en.wikipedia.org/wiki/Vienna_Danube_regulation

Map: https://www.google.com/maps/place/New+Danube/@48.2333707,16....

IIUC the (main) "Danube" is the straight line on the left, the "New Danube" is the straight line on the right, and the "Old Danube" is the semicircle that was the old course of the river and now is a park with a lake.

Venice Italy had an even more visionary way of dealing with urban flooding. The more you think about it, the more brilliant the concept was. The basis of a global brand that has not just survived but strengthened over the centuries. But who would sign off on such an idea today?