Visit the Itaipu Dam

With a little extra time to spare, you can make an easy day trip from Iguazú Falls to the world’s largest hydro-electric initiative, the gigantic Itaipu Dam bridging Brazil and Paraguay. It’s an extraordinary sight and singlehandedly accounts for around 90% of Paraguay’s energy and 25% of Brazil’s. But you don’t need a specific interest in engineering or energy to be astonished by the magnitude of the dam, which has been voted one of the seven modern wonders of the world.