The secret passage of the Clos-Lucé, a subterranean that allowed François I and Leonardo da Vinci to meet again

In Amboise, a mysterious underground would link the Royal Castle to the Clos Lucé, allowing François I to visit Leonardo da Vinci in secret. This passage, now partly collapsed, would also have been used for the construction of the buildings and to flee in case of a siege... You are invited to visit!