For the first time in 20 years, a new U.S. flagship store for Waterford Crystal (127–129 Newbury St., 617-236-0369, waterford.com) has graced this side of the Atlantic. Located on the second floor, the Ireland-based retailer, a luxury staple since 1783, offers a wide array of exclusive Boston-themed glassware—including items engraved with familiar Beantown landmarks like the State House and the Swan Boats at the Public Garden —as well as its usual line of top-notch designer stemware, flatware and china. The store itself is a model of modern elegance, boasting dark wood floors and sparkling chandeliers made from (of course) fine crystal that provide the perfect atmosphere for browsing Waterford’s signature creations.