Cartier

The famed French jeweler and watchmaker moved to its present six-story Fifth Avenue flagship location, a former private mansion, in 1917. The elegant emporium boasts classic collections like Santos de Cartier, based on the brand's original squared-bezel, first-ever men's wristwatch, and Panthère de Cartier, a collection of fierce feline pieces in white or yellow gold, many speckled with diamonds and set with precious gemstones to form the eyes and nose. A coveted Cartier timepiece starts at around $2,500 and climbs into the millions.