This place is worth a visit, if only to discover the building itself. Designed by the famous architect Frank Gehry, it consists of huge glass sails and is surrounded by a pool. Some will find it looks like a ship, or a cloud. As you enter this immense building, you will have the opportunity to admire the waterfall, to lose yourself in the glow of the Grotto, or to contemplate the extraordinary view of Paris from the terraces.