Founded in 1893 as a small haberdashery shop and expanded into its current flagship location beside the Opera Garnier in the early 20th century, Galeries Lafayette Haussmann is one of the most architecturally striking department stores in the world, built around a soaring Belle Epoque atrium topped by a stained-glass dome roughly 43 meters overhead, installed in 1912 in an Art Nouveau style of swirling ironwork and colored glass that remains the store's centerpiece regardless of the fashions sold beneath it. Spread across multiple connected buildings and floors devoted to womenswear, menswear, gourmet food, and luxury brands, the store has functioned since its founding as a showcase for French fashion and craftsmanship as much as a retail destination, and its window displays at Christmas remain a Parisian tradition drawing crowds regardless of whether they intend to shop. A free rooftop terrace, accessible without any purchase required, offers one of the more unexpected panoramic views in central Paris, looking directly across at the gilded dome of the Opera Garnier and out toward the rooftops of the surrounding grand boulevards.