I am glad to publish the following post by Duco Vaillant
Webmaster and Community manager, Dienst Metro
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For the first time a drone has flown through (part of) the 9.7 km long Noord/Zuidlijn, a new underground North/South subway line that is now under construction in Amsterdam.
The drone, fitted with an HD-camera, flies from the north of Amsterdam under the river IJ, the Central Station and the historic center of Amsterdam.
Continue reading Drone makes unique underground footage in Amsterdam