If your trip to Donnemain-Saint-Mames is all sorted out but your travel itinerary is a little on the empty side, let us give you a helping hand.Stop by Château de Châteaudun. It's one sight you'll find on most travelers' must-do lists. If you still have room on that travel itinerary, Caves of Foulon and Museum of Chateaudun will keep you entertained as well.