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Modern tram in Düsseldorf city center on the route which in 2016 is destined to be replaced by the new underground line, Germany Stock Photo - Alamy
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flight planning - Why do airlines follow these routes between Barcelona and Düsseldorf? - Aviation Stack Exchange
![Modern tram in Düsseldorf city center on the route which in 2016 is destined to be replaced by the new underground line, Germany Stock Photo - Alamy Modern tram in Düsseldorf city center on the route which in 2016 is destined to be replaced by the new underground line, Germany Stock Photo - Alamy](https://c8.alamy.com/comp/ER6FE3/modern-tram-in-dsseldorf-city-center-on-the-route-which-in-2016-is-ER6FE3.jpg)