Manhattan's Fifth Avenue has long been the avenue of elegance, but Cartier bumped up the glamour and glitz tenfold for its exhibition "Cartier's 100th Anniversary in America." In 1909, Pierre Cartier opened a flagship boutique in New York City catering to those clients the company had been serving from its Paris locale — the Vanderbilts, the Forbeses and Rockefellers. Not to mention those Americans with the means and fashion sense enough to partake of the glittering array of precious stones showcased in stunning brooches, necklaces, bracelets, watches and other fine jewelry.