When it became popular among the European nobility of the 18th century, porcelain, which hailed from China, was known as “white gold.” Two of its most enthusiastic patrons, princes Augustus II and Louis-Henry de Bourbon, encouraged the manufacture of porcelain in the French towns of Meissen and Chantilly. Costly creations from these two namesake towns are displayed together for the first time in a spectacular exhibition that explores the influence of these pieces on Enlightenment-era decorative arts. The exhibition is designed by the architect and collector Peter Marino, who does nothing by halves. —J.V.