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1. In which portuguese city was Expo 98 held?
2. What was the main theme of Expo 98?
3. In what year did Expo 98 take place?
4. What iconic structure, inspired by the theme of oceans, was built for Expo 98?
5. What is the name of the bridge inaugurated during Expo 98, which was the longest in Europe at the time?
6. What was the mascot of Expo 98 called?
7. Expo 98 marked the 500th anniversary of what historical event?
8. Which part of Lisbon hosted Expo 98?
9. Besides the Vasco da Gama Bridge, what other major infrastructure project was built in preparation for Expo '98?