Chambord is known for its Renaissance castle. It's the largest and most spectacular piece of architecture of the Loire Valley. More than a castle, it's a work of art, a glorious historical place that will take you to the heart of the Loire Valley. Nesteld in a forest as large as Paris, this hunting lodge built by King François I houses 426 rooms, 282 fireplaces and a mindblowing double helix staircase undertaken by Leonardo da Vinci. This Renaissance masterpiece is listed at UNESCO World Heritage.