In this three-part Today in Technology series, Microsoft President Brad Smith and Communications Director Carol Ann Browne examine how AI and mixed reality can open a new window into French culture by using technology like HoloLens. Their journey to help the Musée des Plans-Reliefs adapt its historical 3-D map collection for a digital audience sheds new light on the story of Mont-Saint-Michel, off the coast of Normandy, France, that has captured imaginations for centuries. First, they go to Paris where the once-secret military maps of Louis XIV and Napoleon have been on display for decades. Can HoloLens technology help transform these treasures for audiences in the 21st century?