Turks and Caicos Islands: lowest point: Caribbean Sea 0 m
highest point: Blue Hills 49 m
Tuvalu: lowest point: Pacific Ocean 0 m
highest point: unnamed location 5 m
Uganda: lowest point: Lake Albert 621 m
highest point: Margherita Peak on Mount Stanley 5,110 m
Ukraine: lowest point: Black Sea 0 m
highest point: Hora Hoverla 2,061 m
United Arab Emirates: lowest point: Persian Gulf 0 m
highest point: Jabal Yibir 1,527 m