It’s been 20 years since the design world lost one of its greatest: Charlotte Perriand. To mark the milestone, Fondation Louis Vuitton in Paris is giving over all four floors of galleries in its Gehry Partners–designed building to her furniture and sketches as well as to the artwork that influenced her. Among the hundreds of pieces in the exhibition will be 192 by the architect, several of those she created with such well-known collaborators as Le Corbusier and Pierre Jeanneret, including the iconic Fauteuil Grand Confort from 1928.