Pilot Stirling M0ss has visited (landed in) a total of 142 countries but have 97 countries yet to explore.

American Samoa

Antarctica

Barbados

Bolivia

Botswana

British Indian Ocean Territory

British Virgin Islands

Burkina Faso

Cameroon

Cape Verde

Cayman Islands

Christmas Island

Cocos (Keeling) Islands

Congo

Cook Islands

Costa Rica

Cote D'Ivoire

Cuba

Dominican Republic

Egypt

El Salvador

Eswatini

Falkland Islands

Faroe Islands

French Guiana

French Polynesia

Gabon

Gambia

Guinea

Guinea-Bissau

Guyana

Honduras

Isle Of Man

Jamaica

Johnston Atoll

Kiribati

Macau

Maldives

Mali

Marshall Islands

Mauritania

Mauritius

Mayotte

Midway Islands

Monaco

Mongolia

Montserrat

Morocco

Mozambique

Namibia

Nauru

New Caledonia

Nigeria

Niue

Norfolk Island

North Korea

Northern Mariana Islands

Palau

Palestine

Panama

Papua New Guinea

Paraguay

Reunion

Romania

Rwanda

Saint Helena

Saint Pierre and Miquelon

Samoa

Sao Tome and Principe

Senegal

Seychelles

Sierra Leone

Solomon Islands

Somalia

Sri Lanka

Suriname

Togo

Tonga

Trinidad and Tobago

Tunisia

Tuvalu

Ukraine

Uruguay

Virgin Islands, U.S.

Wake Island

Wallis and Futuna

Western Sahara

Zimbabwe