By May 2007 the construction of all 31 Beijing-based Olympic Games venues had begun. The Chinese government renovated and constructed six venues outside Beijing, and constructed 59 training facilities. The largest structures built were the Beijing National Stadium, Beijing National Indoor Stadium, Beijing National Aquatics Center, Peking University Gymnasium, Olympic Green Convention Center, Olympic Green, and Beijing Wukesong Culture & Sports Center. Almost 85% of the construction budget for the six main venues was funded by $2.1 billion (RMB¥17.4 billion) in corporate bids and tenders. Investments were expected from corporations seeking ownership rights after the Olympics. Some events were held outside Beijing, namely football in Qinhuangdao, Shanghai, Shenyang, and Tianjin; sailing in Qingdao; and, because of the "uncertainties of equine diseases and major difficulties in establishing a disease-free zone", the equestrian events were held in Hong Kong. Some stadiums were built on the former site of hutong neighbourhoods, including Qianmen Subdistrict.
By May 2007 the construction of all 31 Beijing-based Olympic Games venues had begun. The Chinese government renovated and constructed six venues outside Beijing, and constructed 59 training facilities. T,he largest structures built were the Beijing National Stadium, Beijing National Indoor Stadium, Beijing National Aquatics Center, Peking University Gymnasium, Olympic Green Convention Center, Olympic Green, and Beijing Wukesong Culture & Sports Center. Almost 85% of the construction budget for the six main venues was funded by $2.1 billion (RMB¥17.4 billion) in corporate bids and tenders. Investments were expected from corporations seeking ownership rights after the Olympics. Some events were held outside Beijing, namely football in Qinhuangdao, Shanghai, Shenyang, and Tianjin; sailing in Qingdao; and, because of the "uncertainties of equine diseases and major difficulties in establishing a disease-free zone" the equestrian events were held in Hong Kong. Some stadiums were built on the former site of hutong neighbourhoods, including Qianmen Subdistrict.