PARIS — François Pinault’s decades-long battle to place his contemporary art collection here took a leap forward this week when the Japanese architect Tadao Ando unveiled his design to turn a historic rotunda in central Paris into a circular private museum housing the luxury magnate’s collection.
Mr. Pinault, who is one of the world’s top collectors and also owns Christie’s, said the museum would open in early 2019 after a renovation of the Bourse de Commerce, a former grain exchange that was later used as a stock market, and more recently to house the Chamber of Commerce. The building is modeled on the Pantheon and situated between the Louvre and the Pompidou Center, France’s pre-eminent contemporary art museum.