8. Iguazu Falls, Argentina/Brazil
Rivaled only by Victoria Falls, Iguazu is truly one of the most impressive network of waterfalls on earth. Much like Victoria, Iguazu Falls is located at the literal border of two nations, Argentina and Peru. Both sides offer stunning views in this tropical rainforest – and unbeatable wildlife sightings to beat. On my trip to Iguazu, I saw toucans, monkeys and butterflies in every color of the rainbow.