@dominicstucki Love these statistics!
And I think, #Basel’s BLT line 10 is also Europe’s longest international tram line - is crosses into France and makes a station stop at #Leymen there.
Belgium’s #Kusttram tram line is certainly longer - as it does the entire length of the Belgian coast - yet it isn’t an “international” one: its eastern and western termini are on Belgian soil (although only a few hundred meters away from the Dutch and French borders).