I took off on Friday to head to the city of lights for the weekend. First stop: Fondation Louis Vuitton. This museum, which just opened at the end of October, is designed by the architect Frank Gehry. It is composed of huge panes of glass that are shaped to look like the sails of a sailboat. The architecture is filled with an elegant fluidity, from the lofty ceilings to the reflection ponds, to the seemingly légère glass windows.