Park of the Nations
The Park of Nations is basically open all day. Ocean Aquarium 10:00-20:00 in summer, 10:00-18:00 in winter, 13:00-18:00 on Christmas Day, 12:00-18:00 on New Year's Day, and one hour before closing. The opening hours of other facilities can be found at: http://www.portaldasnacoes.pt/Varios/informacoes/ (Local time)
The 1998 World Expo was held in Lisbon, so the Lisbon International Park was built. Located in the northeast of Lisbon, this park is built on the river and has a beautiful scenery. After the end of the World Expo, it was successfully transformed into an area that combines work, culture and business. Many countries in the world used this as a sample to rebuild the site after the World Expo.