The Treasure of Vix is an amazing royal Iron Age burial haul housed at a new museum at Châtillon-Sur-Seine. The famous battle at Alesia is where the Romans and Julius Caesar finally conquered the Gauls under Vercingetorix. The town remains can be visited and a new 50 million euro visitor centre which has just opened.
Les Grottes at d’Arcy-sur-Cure offers a 900 metre subterranean walk to two underground lakes and illuminated caverns filled with stalactites and prehistoric wall paintings from 200,000 years ago.
Tonnerre offers two marvellous sites – The Fosse Dionne and The Hotel Dieu. The Fosse Dionne is a mysterious spring and a fascinating mystery – the source of its water – with explorations date back to the 19th century. Legend has it that it’s the doorway to Hades. In the 18th century a beautiful washhouse was constructed around it.
The Hôtel Dieu de Tonnerre was Founded by Marguerite de Bourgogne in the 13th Century, and is a stunning building with its fine wooden roof like an inverted ship. It has witnessed many important events in France through 8 centuries, and houses a very good hospital museum.