The Expo '98 (1998 World Exposition) took place in which city?

Expo '98 (1998 Lisbon World Exposition) was an official specialised World's Fair held in Lisbon, Portugal from Friday, 22 May to Wednesday, 30 September 1998.

The theme of the fair was "The Oceans, a Heritage for the Future", chosen in part to commemorate 500 years of Portuguese discoveries.

The idea to organize a World's Fair in Portugal originated in 1989 between two Portuguese, António Taurino Mega Ferreira and Vasco Graça Moura, who were in charge of organizing the commemoration of the 500th anniversary of Vasco da Gama's arrival in India in 1498.

The Expo received around 11 million visitors in 132 days, while 143 countries and many organizations were represented.

Expo '98 closed on 30 September 1998. The last day, more than 300 thousand visitors went to see the closing fireworks show, the largest ever presented in Portugal. The site remained closed until February 1999, when it reopened as Parque das Nações (Park of the Nations), a free-access park, keeping the gardens, Oceanarium (Europe's then-largest aquarium), observation tower, funicular, and the Virtual Reality pavilion.