Guernsey
lowest point: Atlantic Ocean 0 m
highest point: unnamed location on Sark 114 m
Guinea
lowest point: Atlantic Ocean 0 m
highest point: Mont Nimba 1,752 m
Guinea-Bissau
lowest point: Atlantic Ocean 0 m
highest point: unnamed location in the northeast corner of the
country 300 m
Guyana
lowest point: Atlantic Ocean 0 m
highest point: Mount Roraima 2,835 m
Haiti
lowest point: Caribbean Sea 0 m
highest point: Chaine de la Selle 2,680 m
Heard Island and McDonald Islands
lowest point: Indian Ocean 0 m
highest point: Mawson Peak, on Big Ben 2,745 m
Holy See (Vatican City)
lowest point: unnamed location 19 m
highest point: unnamed location 75 m
Honduras
lowest point: Caribbean Sea 0 m
highest point: Cerro Las Minas 2,870 m
Hong Kong
lowest point: South China Sea 0 m
highest point: Tai Mo Shan 958 m
Howland Island
lowest point: Pacific Ocean 0 m
highest point: unnamed location 3 m