Venues of the 1976 Summer Olympics as the Montreal Biodôme, opened on 19 June 1992. Île-Notre Dame serves multiple uses as of 2014. The canoeing and rowing basin has hosted World Rowing Championships special events in 1984 and 1992. The venue hosted the ICF Canoe Sprint World Championships in 1986. West of the basin on the island is Circuit Gilles Villeneuve which opened in 1978. The circuit has hosted the Formula One Canadian Grand Prix every year except 1987 and 2009. Venues of the 1976 Summer Olympics For the 1976 Summer Olympics, a total of twenty-seven sports venues were used. Several venues used had been in
Summer Olympic Games demand for tickets to all levels of each event, there was controversy when seats set aside for sponsors and National Delegations went unused in the early days. A system of reallocation was put in place so the empty seats were filled throughout the Games. Rio de Janeiro, Brazil hosted the 2016 Summer Olympics, becoming the third city in the Southern Hemisphere to host the Olympic Games after Melbourne, Australia, in 1956 and Sydney, Australia, in 2000, and the first South American city to host the Olympics. The preparation for these Games was overshadowed by controversies, including the instability of Brazil's