Lake Victoria is the largest lake in Africa and the second-largest freshwater lake in the world by surface area, covering approximately 68,800 square kilometers (26,600 square miles). It is shared by three countries: Tanzania, Uganda, and Kenya.

Lake Khanka (also known as Lake Xingkai) is a transboundary freshwater lake located on the border between Russia and China. It is the largest freshwater lake in the Russian Far East (Primorsky Krai) and the Heilongjiang Province of China.

The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of matter and energy, and the structures they form, from sub-atomic particles to entire galactic filaments.

Lake Erie is the fourth-largest of the five Great Lakes of North America by surface area and the smallest by volume. It borders four U.S. states—Ohio, Pennsylvania, New York, and Michigan—and the Canadian province of Ontario.

Lake Titicaca is one of the most iconic and fascinating natural landmarks in South America. Straddling the border between Peru and Bolivia, it is known for its stunning beauty, rich cultural history, and unique ecological significance. There are numerous ancient ruins around the lake, such as the Chullpas (funerary towers) and Tiwanaku sites near its shores.

Lake Mweru is a freshwater lake located on the border between Zambia and the Democratic Republic of Congo (DRC) in central Africa. It is part of the Congo River basin and lies along the course of the Luapula River, which flows into the lake from the south and exits into the Luvua River in the north.