280 Broadway – also known as the A.T. Stewart Dry Goods Store, the Marble Palace, and the Sun Building – is a seven-story office building on Broadway, between Chambers and Reade Streets, in the Civic Center neighborhood of Lower Manhattan in New York City. Built from 1845 to 1846 for Alexander Turney Stewart, the building was New York City's first Italianate commercial building and one of the United States' first department stores. The building also housed the original New York Sun newspaper from 1919 to 1950 and has served as the central offices for the New York City Department of Buildings since 2002. It is a National Historic Landmark and a New York City designated landmark.