John Wanamaker Department Store was the first department store in Philadelphia, Pennsylvania, and one of the first department stores in the United States. In 1861, he founded a men's clothing store in Philadelphia called Oak Hall. Wanamaker carried on the business alone after Brown's death in 1868. In 1876, Wanamaker purchased the abandoned Pennsylvania Railroad station for use as a new, larger retail location. The concept was to renovate the terminal into a "Grand Depot" similar to London's Royal Exchange or Paris's Les Halles—two central markets, and forerunners of the modern department store, that were well known in Europe at that time. In 2006, Macy's Center City became the occupant of the former Philadelphia Wanamaker's Department Store, which is now a National Historic Landmark.