Via drone and from ground - tak a view on Europe's largest railway construction site: Stuttgart 21, bridge over river Neckar / Neckarbrücke, Stuttgart, Germany, 20.09.2018.
https://en.wikipedia.org/wiki/Stuttgart_21
http://www.bahnprojekt-stuttgart-ulm.de/projekt/stuttgart-filder-s21/stuttgart/zufuehrung-feuerbach-und-bad-cannstatt//
