Spending Christmas in Paris is not a bad idea. It could be an even better idea if a million others didn’t think so too. Anyway, it wasn’t the holiday per se that had us in the City of Light for five days at the end of December. We were there specifically to view a temporary exhibition in the city’s newest great museum. The Fondation Louis Vuitton, designed by Frank Gehry, opened in 2014 in the north sector of the Bois de Boulogne. For those of you who know the Bois, it sits grandly next to the Jardin d’Acclimation, the playground for children. The exterior of the museum resembles other Gehry designs— great, winged, aysymetrical shapes.