I am 20 and along with my dad we'll be touring Europe in July-August following the allied armies route. We begin in England and then cross by ferry from Portsmouth to Caen. There we intend to rent a car and drive down to Carentan, where we'll stay for three days. We chose Carentan because it's between the american beaches and even after the museums close I can still go out on a bike. One day will be spent in the Utah sector, the second in Omaha Sector, and the third in the Gold Juno and Sword sector.
Earmarked places to visit so far:
Utah sector
Dead Man’s Corner http://www.paratrooper-museum.org/
St-Marie-du-Mont
Boutique du Holdy http://leholdy.com/
Ocupation Museum
Liberation Museum
La Madeleine http://www.normandie44lamemoire.com/versionanglaise/fichesvillesus/lamadelaudous2.html
Azeville
St-Marcouf Battery
St-Marie-du-Mont
Airborne Museum http://www.airborne-museum.org/eng/home.php
Bunkers to the north of la Madeleine
Omaha sector:
Grandcapm-Maisy
Ranger’s museum http://www.grandcamp-maisy.fr/musee-des-rangers
Pointe du Hoc
Museo memorial Omaha Beach http://www.musee-memorial-omaha.com/
American Normandy Cementery
Colleville sur Mer
Big Red One museum
I still have to research these sector more and the commonwealth sector.
Hope it helps