Amazing double-helix staircase in the Château de Chambord, Loire Valley, France. The two helixes ascend three floors and never meet. In the center is an open air shaft that lets in light. Some believe Leonardo da Vinci designed the staircase.
Places: Châtau de Chenonceau, Loire Valley, France (This is Glamorous)
Château de Azay-le-Rideau - Loire Valley, France - a former feudal castle - during the century, the local seigneur Ridel d’Azay, a knight in the service of Philip II Augustus, built the fortress to protect the Tours to Chinon road.