Germany
lowest point: Neuendorf bei Wilster -3.54 m
highest point: Zugspitze 2,963 m
Ghana
lowest point: Atlantic Ocean 0 m
highest point: Mount Afadjato 880 m
Gibraltar
lowest point: Mediterranean Sea 0 m
highest point: Rock of Gibraltar 426 m
Glorioso Islands
lowest point: Indian Ocean 0 m
highest point: unnamed location 12 m
Greece
lowest point: Mediterranean Sea 0 m
highest point: Mount Olympus 2,917 m
Greenland
lowest point: Atlantic Ocean 0 m
highest point: Gunnbjorn 3,700 m
Grenada
lowest point: Caribbean Sea 0 m
highest point: Mount Saint Catherine 840 m
Guadeloupe
lowest point: Caribbean Sea 0 m
highest point: Soufriere 1,484 m
Guam
lowest point: Pacific Ocean 0 m
highest point: Mount Lamlam 406 m
Guatemala
lowest point: Pacific Ocean 0 m
highest point: Volcan Tajumulco 4,211 m