Esplanade de La Défense is a station on Paris Métro Line 1 on the outskirts of La Défense on the border of Courbevoie and Puteaux.
It has an island platform because of limitations on space due it being enclosed in a site originally earmarked for one of the underpasses of the A14 autoroute.
Wikipedia https://en.wikipedia.org/wiki/Esplanade_de_La_Défense_(Paris_Métro)
Address 7 Esplanade du Général de Gaulle, Courbevoie 92400, France
Coordinates 48°53'16.977" N 2°15'0.285" E