Las Vegas Motor Speedway
On October 16, 2011, the final race of the 2011 IndyCar season, the IZOD IndyCar World Championship, was held at Las Vegas. However, the race was halted by a horrific crash on lap 11 that involved 15 cars, some of which became airborne, and some of which burst into flames. The crash began when Wade Cunningham made light contact with James Hinchcliffe, but the situation turned into a big pile-up of cars. The crash allowed a red flag to be waved almost instantly, due to the remains of the damaged cars and the amount of debris on the track.
International AIDS Society
The IAS also organizes the IAS Conference on HIV Science (abbreviated IAS 2013, IAS 2015 and so on) (formerly called the IAS Conference on HIV Pathogenesis, Treatment and Prevention). This conference, the largest open scientific conference on HIV- and AIDS-related issues, occurs biennially and focuses on the biomedical aspects of HIV. The conference brings together professionals from around the world to examine the latest scientific developments in HIV research, prevention and treatment with a focus on moving science into practice and policy. It was held in Buenos Aires in 2001, Paris in 2003, Rio de Janeiro in 2005, Sydney in 2007, Cape Town in 2009, Rome in 2011, Kuala Lumpur in 2013, Vancouver in 2015 and Paris in 2017. IAS 2019 will be held in Mexico City, Mexico on 21-24 July 2019.