Arup had its own sports division, Arup Sport, specialising in designing, consulting and structural engineering for sporting facilities such as stadia.[15] This group continues to work under the banner of Arup Architecture following a streamlining of the Arup brand. Many of Arup's modern stadia are designed with a contemporary, distinctive edge and the company strives to revolutionise stadium architecture and performance.[15] For instance, the Bird's Nest Stadium for the 2008 Olympics was complimented for its striking architectural appearance[16] and the City of Manchester Stadium for the 2002 Commonwealth Games has stairless entry to the upper tiers through circular ramps outside the stadium.[15] The most notable stadium projects led by Arup remain the City of Manchester Stadium (2002), Allianz Arena (2005), Beijing National Stadium (2008), Donbass Arena (2009) and the Singapore Sports Hub (2014).