Geography World

Map references:
Physical Map of the World, Political Map of the World, Standard
Time Zones of the World

Area:
total: 510.072 million sq km
water: 361.132 million sq km
land: 148.94 million sq km
note: 70.8% of the world's surface is water, 29.2% is land

Area - comparative:
land area about 16 times the size of the US

Land boundaries:
the land boundaries in the world total 250,472 km (not counting
shared boundaries twice); two nations, China and Russia, each border
14 other countries
note: 43 nations and other areas are landlocked, these include:
Afghanistan, Andorra, Armenia, Austria, Azerbaijan, Belarus, Bhutan,
Bolivia, Botswana, Burkina Faso, Burundi, Central African Republic,
Chad, Czech Republic, Ethiopia, Holy See (Vatican City), Hungary,
Kazakhstan, Kyrgyzstan, Laos, Lesotho, Liechtenstein, Luxembourg,
Malawi, Mali, Moldova, Mongolia, Nepal, Niger, Paraguay, Rwanda, San
Marino, Slovakia, Swaziland, Switzerland, Tajikistan, The Former
Yugoslav Republic of Macedonia, Turkmenistan, Uganda, Uzbekistan,
West Bank, Zambia, Zimbabwe; two of these, Liechtenstein and
Uzbekistan, are doubly landlocked

Coastline:
356,000 km
note: 98 nations and other entities are islands that border no other
countries, they include: American Samoa, Anguilla, Antigua and
Barbuda, Aruba, Ashmore and Cartier Islands, The Bahamas, Bahrain,
Baker Island, Barbados, Bassas da India, Bermuda, Bouvet Island,
British Indian Ocean Territory, British Virgin Islands, Cape Verde,
Cayman Islands, Christmas Island, Clipperton Island, Cocos (Keeling)
Islands, Comoros, Cook Islands, Coral Sea Islands, Cuba, Cyprus,
Dominica, Europa Island, Falkland Islands (Islas Malvinas), Faroe
Islands, Fiji, French Polynesia, French Southern and Antarctic
Lands, Glorioso Islands, Greenland, Grenada, Guam, Guernsey, Heard
Island and McDonald Islands, Howland Island, Iceland, Jamaica, Jan
Mayen, Japan, Jarvis Island, Jersey, Johnston Atoll, Juan de Nova
Island, Kingman Reef, Kiribati, Madagascar, Maldives, Malta, Isle of
Man, Marshall Islands, Martinique, Mauritius, Mayotte, Federated
States of Micronesia, Midway Islands, Montserrat, Nauru, Navassa
Island, New Caledonia, New Zealand, Niue, Norfolk Island, Northern
Mariana Islands, Palau, Palmyra Atoll, Paracel Islands, Philippines,
Pitcairn Islands, Puerto Rico, Reunion, Saint Helena, Saint Kitts
and Nevis, Saint Lucia, Saint Pierre and Miquelon, Saint Vincent and
the Grenadines, Samoa, Sao Tome and Principe, Seychelles, Singapore,
Solomon Islands, South Georgia and the South Sandwich Islands,
Spratly Islands, Sri Lanka, Svalbard, Tokelau, Tonga, Trinidad and
Tobago, Tromelin Island, Turks and Caicos Islands, Tuvalu, Vanuatu,
Virgin Islands, Wake Island, Wallis and Futuna, Taiwan

Maritime claims:
a variety of situations exist, but in general, most countries make
the following claims measured from the mean low-tide baseline as
described in the 1982 UN Convention on the Law of the Sea:
territorial sea - 12 nm, contiguous zone - 24 nm, and exclusive
economic zone - 200 nm; additional zones provide for exploitation of
continental shelf resources and an exclusive fishing zone; boundary
situations with neighboring states prevent many countries from
extending their fishing or economic zones to a full 200 nm

Climate:
two large areas of polar climates separated by two rather narrow
temperate zones form a wide equatorial band of tropical to
subtropical climates

Terrain:
the greatest ocean depth is the Mariana Trench at 10,924 m in the
Pacific Ocean

Elevation extremes:
lowest point: Bentley Subglacial Trench -2,540 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 (1999 est.)