Outside the United States there are waterfalls and earth formed things that are unexplainable of there greatness. And one of the top waterfalls besides Niagra is Iguazu Falls, Argentina & Brazil. Multiple waterfalls in multiple locations!
The Goðafoss (Waterfall of the Gods) is one of the most spectacular waterfalls in Iceland. It is located in the Mývatn district of North-Central Iceland at the beginning of the Sprengisandur highland road.