#1 Château de Chambord (Chambord)
Château de Chambord, located in Sologne, is the largest and most visited of the Loire Valley castles. Built in the 16th century by François I, this Renaissance masterpiece features 400 rooms, a famous double-helix staircase, and an imposing facade. This UNESCO World Heritage site spans a 5,400-hectare forest estate. Experience architectural grandeur and history.