The Isar
The Isar river (Munich, Germany) was straightened and walled in, and went through a recent restoration process.
Cities and their citizens need restored rivers, argues speaker at TEDxFreiburg
The brazilian architect Carolina Nunes and her talk "The fluid ‘nature’ of modernity: just like a river" showed how public space are intertwining with preservation, and how the interaction of cities with nature is positively influencing the quality of life of people and sustainability.