Fascinating. Is there such a thing in Europe? I am not aware...
@FailForward Yes there is. Probably more than one but the one I know about goes from the netherlands to romania as a continuous waterway. In fact there is a third leg connected to this river that can divide europe into 3 parts not just 2
@freemo It's not natural. Danube-Rhine channel is man made: https://en.wikipedia.org/wiki/Rhine%E2%80%93Main%E2%80%93Danube_Canal
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