Old Danube
When the Danube[a]'s flow past Vienna was regulated in the second half of the 19th century[b] the old flow remained as a lopped-off crescent on the north-east side of the new flow.
When the Danube[a]'s flow past Vienna was regulated in the second half of the 19th century[b] the old flow remained as a lopped-off crescent on the north-east side of the new flow.
