From London in 1851 to Chicago in 1893, these fairs put cities at the center of the world stage, just as Olympics and world cups do today.

Is there anything you find changed about the Fair?

The children went on everything at the Fair, and then found they hadn't enough money to get the bus home.

But he declined, feeling that the time was not right for such a fair in the city-state.

The World Horticulture Expo successfully held in Kunming, Yunnan Province of China in 1999 displayed China's ability to host a comprehensive World Expo.