lowest point: Bentley Subglacial Trench -2,540 m
highest point: Vinson Massif 4,897 m
note: the lowest known land point in Antarctica is hidden in the Bentley Subglacial Trench; at its surface is the deepest ice yet discovered and the world's lowest elevation not under seawater
lowest point: Laguna del Carbon -105 m (located between Puerto San Julian and Comandante Luis Piedra Buena in the province of Santa Cruz)
highest point: Cerro Aconcagua 6,960 m (located in the northwestern corner of the province of Mendoza)
lowest point: Pacific Ocean 0 m
highest point: Chimborazo 6,267 m
note: due to the fact that the earth is not a perfect sphere and has an equatorial bulge, the highest point on the planet furthest from its center is Mount Chimborazo not Mount Everest, which is merely the highest peak above sea-level
lowest point: Lammefjord, Denmark -7 m; Zuidplaspolder, Netherlands -7 m
highest point: Mont Blanc 4,807 m; note - situated on the border between France and Italy
lowest point: Rhone River delta -2 m
highest point: Mont Blanc 4,807 m
note: in order to assess the possible effects of climate change on the ice and snow cap of Mont Blanc, its surface and peak have been extensively measured in recent years; these new peak measurements have exceeded the traditional height of 4,807 m and have varied between 4,808 m and 4,811 m; the actual rock summit is 4,792 m and is 40 m away from the ice-covered summit
lowest point: Indian Ocean 0 m
highest point: Mont de la Dives on Ile Amsterdam (Ile Amsterdam et Ile Saint-Paul) 867 m; unnamed location on Ile Saint-Paul (Ile Amsterdam et Ile Saint-Paul) 272 m; Pic Marion-Dufresne in Iles Crozet 1,090 m; Mont Ross in Iles Kerguelen 1,850 m; unnamed location on Bassas de India (Iles Eparses) 2.4 m; unnamed location on Europa Island (Iles Eparses) 24 m; unnamed location on Glorioso Islands (Iles Eparses) 12 m; unnamed location on Juan de Nova Island (Iles Eparses) 10 m; unnamed location on Tromelin Island (Iles Eparses) 7 m
lowest point: Norwegian Sea 0 m
highest point: Haakon VII Toppen on Beerenberg 2,277 m
note: Beerenberg volcano has numerous peaks; the highest point on the volcano rim is named Haakon VII Toppen, after Norway's first king following the reestablishment of Norwegian independence in 1905
lowest point: Zuidplaspolder -7 m
highest point: Mount Scenery 862 m (on the island of Saba in the Caribbean, now considered an integral part of the Netherlands following the dissolution of the Netherlands Antilles)
note: the highest point on continental Netherlands is Vaalserberg at 322 m
lowest point: Atlantic Ocean 0 m
highest point: Queen Mary's Peak on Tristan da Cunha 2,060 m; Green Mountain on Ascension Island 859 m; Mount Actaeon on Saint Helena Island 818 m
lowest point: Vpadina Akchanaya -81 m
note: Sarygamysh Koli is a lake in northern Turkmenistan with a water level that fluctuates above and below the elevation of Vpadina Akchanaya (the lake has dropped as low as -110 m)
highest point: Gora Ayribaba 3,139 m
lowest point: Death Valley -86 m
highest point: Mount McKinley 6,194 m
note: the peak of Mauna Kea (4,207 m above sea level) on the island of Hawaii rises about 10,200 m above the Pacific Ocean floor; by this measurement, it is the world's tallest mountain - higher than Mount Everest, which is recognized as the tallest mountain above sea level
lowest point: Pacific Ocean 0 m
highest point: Baker Island, unnamed location - 8 m; Howland Island, unnamed location - 3 m; Jarvis Island, unnamed location - 7 m; Johnston Atoll, Sand Island - 10 m; Kingman Reef, unnamed location - less than 2 m; Midway Islands, unnamed location - 13 m; Palmyra Atoll, unnamed location - 3 m
lowest point: Bentley Subglacial Trench (Antarctica) -2,555 m
note: in the oceanic realm, Challenger Deep in the Mariana Trench is the lowest point, lying -10,924 m below the surface of the Pacific Ocean
highest point: Mount Everest 8,850 m
top ten highest mountains (measured from sea level): Mount Everest (China-Nepal) 8,850 m; K2 (Pakistan) 8,611 m; Kanchenjunga (India-Nepal) 8,598 m; Lhotse (Nepal) 8,516 m; Makalu (China-Nepal) 8,463 m; Cho Oyu (China-Nepal) 8,201 m; Dhaulagiri (Nepal) 8,167 m; Manaslu (Nepal) 8,163 m; Nanga Parbat (Pakistan) 8,125 m; Anapurna (Nepal) 8,091 m