last updated: Aug 2009

I appropriated the following official list of the world's countries from travelerscenturyclub.org and the idea to do this list from Philip Greenspun. The countries I have visited are highlighted in red.

PACIFIC OCEAN (40)
  • Australia
  • Bismark Archipelago (New Ireland, New Britain, Bougainville, Admiralty Islands)
  • Chatham Islands
  • Cook Islands (Rarotonga, Aitutaki, Penrhyn)
  • Easter Island
  • Fiji Islands
  • French Polynesia (Tahiti,Tuamotu, Austral, Gambier)
  • Galapagos Islands
  • Guam
  • Hawaiian Islands
  • Johnston Island
  • Juan Fernandez Islands (Robinson Crusoe Island)
  • Kiribati (Gilberts,Tarawa, Ocean Island)
  • Line/Phoenix Islands (Palmyra, Fanning, Christmas, Canton, Enderbury, Howland)
  • Lord Howe Island
  • Marquesas Islands
  • Marshall Islands, Republic of (Majuro, Kwajalein, Eniwetok)
  • Micronesia, Fed.States of (Pohnpei, Kosrae, Chuuk,Yap,Caroline Islands)
  • Midway Island
  • Nauru
  • New Caldedonia & Deps. (Noumea, Loyalty Islands)
  • New Zealand
  • Niue
  • Norfolk Island
  • Northern Marianas (Saipan, Tinian)
  • Ogasawara (Bonin, Volcano Island, Iwo Jima)
  • Palau, Republic of
  • Papua New Guinea
  • Pitcairn Island
  • Ryukyu Islands (Okinawa)
  • Samoa, American (Pago Pago)
  • Samoa, Western (Apia)
  • Solomon Islands (Guadalcanal, New Georgia,Tulagi)
  • Tasmania
  • Tokelau Islands (Fakaofu, Atafu, Union)
  • Tonga (Nukualofa)
  • Tuvalu (Ellice Island, Funafuti, Vaitapu)
  • Vanuatu (New Hebrides Islands)
  • Wake Island
  • Wallis & Futuna Islands

NORTH AMERICA (5)
  • Alaska
  • Canada
  • Mexico
  • St. Pierre & Miquelon
  • United States (continental)

CENTRAL AMERICA (8)
  • Belize (British Honduras)
  • Costa Rica
  • El Salvador
  • Guatemala
  • Honduras
  • Nicaragua
  • Panama
  • San Blas Islands

SOUTH AMERICA (13)

  • Argentina
  • Bolivia
  • Brazil
  • Chile 
  • Colombia
  • Ecuador
  • French Guiana
  • Guyana (British Guiana)
  • Paraguay
  • Peru
  • Suriname (Netherlands Guiana)
  • Uruguay
  • Venezuel

CARIBBEAN (27)
  • Anguilla
  • Antigua & Deps. (Barbuda, Redonda)
  • Aruba
  • Bahamas
  • Barbados
  • Cayman Islands
  • Cuba
  • Dominica
  • Dominican Republic
  • Grenada  & Deps. (Carriacou, Grenadines)
  • Guadeloupe  & Deps.(Marie Galante)
  • Haiti
  • Jamaica
  • Leeward Islands, French (St. Martin, St. Barts)
  • Leeward Islands, Netherlands (Saba, St. Eustatius, St. Maarten)
  • Martinique
  • Montserrat
  • Netherlands Antilles (Curacao, Bonaire)
  • Puerto Rico
  • San Andres & Providencia
  • St. Kitts & Nevis
  • St. Lucia 
  • St. Vincent & Deps. (Bequia, Canouan Grenadines)
  • Trinidad   & Tobago
  • Turks & Caicos Islands
  • Virgin Islands, U.S. (St. Croix, St. John, St. Thomas)
  • Virgin Islands, British (Tortola, etc.)

ATLANTIC OCEAN (13)

  • Ascension
  • Azores Islands   
  • Bermuda
  • Canary Islands
  • Cape Verde Islands
  • Falkland Islands
  • Fernando do Noronha
  • Faroe Islands
  • Greenland (Kalaallit Nunaat)
  • Iceland
  • Madeira
  • St. Helena
  • Tristan de Cunha

EUROPE & MEDITERRANEAN (67)
  • Aland Islands (Mariehamn)
  • Albania
  • Andorra
  • Austria 
  • Balearic Islands (Mallorca, Minorca)
  • Belarus
  • Belgium   
  • Bosnia & Herzegovina (Sarajevo)
  • Bulgaria
  • Corsica
  • Crete
  • Croatia
  • Cyprus, Republic
  • Cyprus, Turkish Fed. State
  • Czech Federated Rep.   
  • Denmark
  • Dodecanese Is. (Rhodes)
  • England 
  • Estonia
  • Finland
  • France  
  • Germany   
  • Gibraltar
  • Greece  
  • Guernsey & Deps (Alderney, Herm, Sark, Channel Islands)
  • Hungary  
  • Ionian Islands (Corfu, etc.)
  • Ireland (Eire)   
  • Ireland, Northern (Ulster)
  • Isle of Man
  • Italy   
  • Jersey (Channel Islands)
  • Kaliningrad
  • Kosovo
  • Lampedusa
  • Latvia
  • Liechtenstein
  • Lithuania 
  • Luxembourg
  • Macedonia
  • Malta
  • Moldova
  • Monaco
  • Montenegro
  • Netherlands   
  • Norway   
  • Poland 
  • Portugal
  • Romania
  • Russia
  • San Marino
  • Sardinia   
  • Scotland  
  • Serbia
  • Sicily
  • Slovakia
  • Slovenia
  • Spain
  • Spitsbergen (Svalbard, Bear Island)
  • Srpska
  • Sweden
  • Switzerland
  • Trans Dniester
  • Turkey in Europe (Istanbul)
  • Ukraine
  • Vatican City
  • Wales

ANTARCTICA (9)

  • American (Palmer, McMurdo Sound, South Pole)
  • Argentine South Pole
  • Australian Antarctic Territory South Pole (Mawson, Davis, Macquarie, Heard)
  • Chilean South Pole
  • Falkland Islands Dependencies (British Antarctica, Graham Land, So. Sheltland, So. Sandwich, So. Georgia, So. Orkney)
  • French Southern & Antarctic Territory South Pole (Kerguelon, Crozet, Amsterdam, St. Paul)
  • Norwegian (Bouvet)
  • New Zealand South Pole (Ross Dependency)
  • Russian (Bellingshausen)

AFRICA (52)
  • Algeria
  • Angola
  • Benin (Dahomey)
  • Botswana (Bechuanaland)
  • Burkina Faso (Upper Volta)
  • Burundi (Urundi)
  • Cameroon
  • Central African Rep.
  • Chad
  • Republic of Congo
  • Democratic Republic of Congo
  • Djibouti (2008)
  • Egypt
  • Equatorial Guinea (Rio Muni, Fernando Poo)
  • Eritrea
  • Ethiopia
  • Gabon
  • Gambia
  • Ghana (Gold Coast, British Togoland)
  • Guinea (French)
  • Guinea-Bissau
  • Ivory Coast
  • Kenya
  • Lesotho (Basutoland)
  • Liberia (2008)
  • Libya
  • Malawi (Nyasaland)
  • Mali
  • Mauritania
  • Morocco
  • Morocco,Spanish (Ceuta, Melilla)
  • Mozambique
  • Namibia
  • Niger
  • Nigeria
  • Rwanda
  • Sao Tome & Principe
  • Senegal
  • Sierra Leone
  • Somalia (Italian Somaliland)
  • Somaliland (Brit.)
  • South Africa 
  • Sudan
  • Swaziland
  • Tanzania (Tanganyika)
  • Togo
  • Tunisia
  • Uganda
  • Western Sahara (Spanish Sahara)
  • Zambia (No. Rhodesia)
  • Zanzibar
  • Zimbabwe (So. Rhodesia)

MIDDLE EAST (21)
  • Abu Dhabi
  • Ajman
  • Bahrain
  • Dubai
  • Fujeirah
  • Iran
  • Iraq
  • Israel  
  • Jordan
  • Kuwait
  • Lebanon
  • Oman  
  • Palestine
  • Qatar
  • Ras Al Khaimah
  • Saudi Arabia
  • Sharjah
  • Syria
  • Umm Al Qaiwain
  • Yemen (No. Rep. Sana'a)
  • Yemen (So. Rep. Aden)

INDIAN OCEAN (14)

  • Andaman-Nicobar Islands
  • British Indian Ocean Territory (Chagos, Arch, Diego Garcia)
  • Christmas Island
  • Cocos Islands (Keeling)
  • Comoro Islands (Anjouan Moheli, Grand Comoro)
  • Lakshadweep,Union Terr. Of ( Laccadive Is.)
  • Madagascar
  • Maldive Islands
  • Mauritius & Deps. (Agalega, St. Brandon)
  • Mayotte (Dzaoudzi)
  • Reunion & Deps. (Tromelin, Glorioso)
  • Rodriguez Island
  • Seychelles
  • Zil Elwannyen Sesel (Aldabra, Farquhar, Amirante Is.)

ASIA (48)
  • Afghanistan
  • Armenia (Yerevan)
  • Azerbaijan (Baku)
  • Bangladesh
  • Bhutan
  • Brunei
  • Cambodia
  • China, People's Rep.
  • East Timor
  • Georgia
  • Hainan Island
  • Hong Kong   
  • India
  • Indonesia (Java)
  • Irian Jaya (Dutch New Guinea)
  • Japan 
  • Kalimantan (Indonesian Borneo)
  • Kashmir
  • Kazakhstan
  • Kyrgyzstan
  • Korea, North
  • Korea, South
  • Laos
  • Lesser Sunda Islands (Bali,Timor, Indonesia)
  • Macau
  • Malaysia
  • Moluka
  • Mongolia, Rep.
  • Myanmar (Burma)
  • Nepal
  • Pakistan
  • Philippines (2007)
  • Sabah (No. Borneo)
  • Sarawak
  • Siberia (Russia in Asia)
  • Sikkim
  • Singapore
  • Sri Lanka (Ceylon)
  • Sulawesi (Celebes, Indonesia)
  • Sumatra (Indonesia)
  • Taiwan. R.O.C.
  • Tajikistan
  • Thailand
  • Tibet
  • Turkey in Asia (Anatolia, Ankara, Izmir)
  • Turkmenistan
  • Uzbekistan
  • Vietnam

THIS LIST IS RECOGNIZED BY THE WORLD AS THE STANDARD OF
COUNTRIES AND DESTINATIONS THAT ARE POLITICALLY,
ETHNOLOGICALLY OR GEOGRAPHICALLY DIFFERENT.