At Longues sur Mer
In July 2018, I had the pleasure to visit the Normandy beaches where the liberation of Europe started on D-day 1944. With the T57K, we visited quite some sites. There are several museums in the area about the Atlantic wall, D-day, its logistics, the liberation of Normany etc etc. It is a recommended visit.
More info about the area:
https://en.wikipedia.org/wiki/Longues-sur-Mer_battery
http://en.normandie-tourisme.fr/sites-and-attractions/the-d-day-landing-beaches-5-2.html