Dallas is a modern metropolis in northern Texas, United States of America, the commercial and cultural center of the region. The sixth floor museum in the Dili Plaza is dedicated to the events surrounding the assassination of President John F. Kennedy in 1963. The Art Quarter houses the Dallas Museum of Art and the Trammella and Margaret Crowe Museum of Asian Art, whose collections span a period of several thousand years. The building of the Nasher Sculpture Center, designed in a minimalist style, features modern sculpture. The population of the city is one million three hundred and fifty thousand people.