Visitors take photos in World Expo Park in east China's Shanghai on Oct. 12, 2010. [Xinhua/Zhang Guojun]

Local media reported that Guangzhou is planning to apply to be the host city of the 2020 Expo, according to China Daily.

Some visitors suggest that the selection of host cities might not be limited to large cities such as Beijing and Guangzhou if China has the chance to hold another Expo.

However, not every visitor to the Expo Garden agreed with holding another world fair in China.

"The half-year event has brought many inconveniences to local residents and some of them have been forced to change their lives, like getting through traffic, to welcome the event," a Shanghai resident surnamed Zhou was quoted by the newspaper as saying.