Singapore's President Tony Tan Keng Yam (2nd L) presents the Lee Kuan Yew World City Prize to Zhou Naixiang (2nd R), mayor of China's Suzhou City, during the World Cities Summit in Singapore on June 2, 2014. Suzhou City in east China won the Lee Kuan Yew World City Prize for this year. (Xinhua/Then Chih Wey)

Zhou Naixiang, mayor of China's Suzhou City, attends the Lee Kuan Yew World City Prize award ceremony during the World Cities Summit in Singapore on June 2, 2014. Suzhou City in east China won the Lee Kuan Yew World City Prize for this year. (Xinhua/Then Chih Wey)