Countries: Portugal, Belgium, China, India, Australia, Norway, Japan, the Netherlands, Switzerland.
Seas and oceans: the Atlantic, the Pacific, the North Sea, the Black Sea, the Yellow Sea.
Continents: Africa, South America, Australia, Europe, Asia, the Arctic.
Rivers and lakes: Baikal, the Thames, the Volga, the Nile, the Amason, the Niagara River.
The Niagara Fall - это водопад.