The world's largest museum, the Musée du Louvre packs thousands of artworks into a 73,000-square-meter exhibition space in three sections: the Denon, Richelieu, and Sully wings, in a magnificent building that was once the palace of French kings.
Each wing has more than 70 rooms displaying paintings and objects of art, plus there are enormous halls filled with sculptures. It's impossible to see the entire collection in one day or even in a week.