What could be more glamorous than saying “I do” surrounded by vaulted arches, golden balconies and glittering chandeliers? In the place where Elizabeth Taylor and Richard Burton spent their sequestered second honeymoon, along with a red-carpet list of high society notables, starlets and world leaders? Our 1912 institution is Grand Old Boston epitomized Historic? Yes. And timeless, and classic, and elegant. But old? Never.