houses here were built from the 1890s to the 1920s. Although it has remained a mostly white and wealthy area throughout the 20th century, it is a fairly integrated community. In 1940 some blacks who lived as domestic workers resided in a single block of houses in close proximity to their employers. Those houses were described by Jacalyn D. Harden, author of Double Cross: Japanese Americans in Black and White Chicago, as being "modest". At 5000 North Marine Drive is The Aquitania, a co-op building constructed in 1923 and listed on the National Register of Historic Places since 2002. The Aquitania was built by Ralph C. Harris and Byron H. Jillson in the Classical Revival style. It was developed by George K. Spoor, the co-founder of Essanay Studios, a producer of silent movies in the first decades of the twentieth century. At this time, Chicago rivaled both New York City and Hollywood in film production, and Spoor was able to use his considerable wealth to build an apartment he felt fitting for the film stars connected with Chicago's growing entertainment industry. Landmarks Uptown Entertainment District Historically a very popular tourist destination, the Uptown Entertainment District is home to various music venues, nightclubs, restaurants and shops. The Uptown Entertainment District is now experiencing a revival, with new restaurants and shops opening every year. Uptown Square, at the center of the Uptown Entertainment District, was designated as a National Historic District on the National Register of Historic Places in 2000. Uptown is also a stop for Chicago Gangster tours, with many locations tied to infamous gangsters such as John Dillinger, Al Capone, Machine Gun Jack McGurn, Roger Touhy ("Terrible Touhy") and others. Aragon Ballroom The Aragon Ballroom is still a very popular music venue. During the 1920s and 1930s, most of the nation's well-known jazz groups played the Aragon. Live radio broadcasts from the Aragon helped promote the Aragon's entertainers throughout the Midwest and beyond. Hotels quickly sprang up in the Uptown area, and it became a mecca for young adults who visited Chicago to dance to the Big Bands of the 1940s and 1950s. Frank Sinatra, Tommy Dorsey, Glenn Miller, Benny Goodman, Duke Ellington, Lawrence Welk, Guy Lombardo, Wayne King and other famous bandleaders often played there. In decades to follow, a very diverse selection of "big name" groups have performed, including The Rolling Stones, U2, The Smiths, The Doors, Snoop