Cubao, south of Diliman is an important commercial area. At its heart is the Araneta Center along EDSA (C-4) and Aurora Boulevard (R-6). It is a 35-hectare commercial estate owned and developed by the Araneta family. Department stores and retail centers can also be found here, such as Gateway Mall, Plaza Fair, Rustan's, Shopwise Supercenter, SM Cubao, Ali Mall, and Farmer's Plaza. At the center is Smart Araneta Coliseum, often called the Big Dome. Many musical concerts, ice shows, circus shows, religious crusades, wrestling, cockfighting, and basketball games are held in this 20,000-capacity coliseum. In the outskirts of Araneta Center is the Cubao Expo, an artists' colony and site of weekend flea markets. It is also a home to call centers like APAC, Telus, and Stellar.
Cubao is also the home of the Cubao Cathedral the seat of the Roman Catholic Diocese of Cubao. SM Hypermarket is located just outside the Araneta Center, along EDSA. Nightclubs also abound within the Cubao area, catering to a full range of tastes. There are residential areas ranging from the middle class to the upper class. Araneta Center is also home to the Consulate of the Republic of Colombia. North from Araneta Center along EDSA (C-4) are numerous bus terminals, a place where one can take a bus ride to almost any point in Luzon, Visayas or Mindanao. It is also an intersection point for two of city's commuter train lines (the MRT-3 and the MRT-2).