The CBD covers the ground between Canal and Poydras streets, with some spillover into the Warehouse District's official territory. By day the CBD hums with commerce and productivity. You'll find the National World War II Museum, the Ogden Museum of Southern Art, the Contemporary Arts Center, the Louisiana Children's Museum, and Louisiana’s Civil War Museum at Confederate Memorial Hall—all within a three-square-block radius. The neighborhood includes the Mercedes-Benz Superdome, the convention center, and Harrah's Casino. Around central Lafayette Square you’ll also find historic architecture, government buildings, and office complexes. Canal Street is the CBD's main artery and the official dividing line between the business district and the French Quarter; street names change from American to French as they cross Canal into the Quarter. Served by the streetcar, the palm tree–lined Canal Street is regaining its former elegance, particularly as it nears the river.