Seven Wonders of the Modern World 2. Itaipu Dam, The Parana River, between Brazil and Paraguay The power plants served by this massive dam supply more than 25% Brazil's and 80% of Paraguay's every year. Its creation required engineers to shift the course of Parana River, the seventh largest Earth, displace more than 50 lmon tons of earth, and utilize enough iron and steel to build 380. Eiffel TowersSeven Wonders of the Modern World 2. Itaipu Dam, The Parana River, between Brazil and Paraguay The power plants served by this massive dam supply more than 25% of Brazil’s and 80% of Paraguay’s energy every year. Its creation required engineers to shift the course of the Parana River, the seventh largest on Earth, displace more than 50 million tons of earth, and utilize enough iron and steel to build 380 Eiffel Towers