Major sporting venues in the city include the National Stadium, also known as the "Birds' Nest", National Aquatics Center, also known as the "Water Cube", National Indoor Stadium, all in the Olympic Green to the north of downtown; the MasterCard Center at Wukesong west of downtown; the Workers' Stadium and Workers' Arena in Sanlitun just east of downtown and the Capital Arena in Baishiqiao, northeast of downtown. In addition, many universities in the city have their own sport facilities.