Pilot Karl has visited (landed in) a total of 115 countries but have 124 countries yet to explore.

Afghanistan

Albania

Algeria

American Samoa

Anguilla

Antarctica

Armenia

Aruba

Bangladesh

Barbados

Belarus

Bosnia and Herzegovina

Brunei

Bulgaria

Burundi

Cambodia

Cape Verde

Cayman Islands

Christmas Island

Cocos (Keeling) Islands

Comoros

Cook Islands

Cyprus

Denmark

Djibouti

Dominica

Ecuador

Egypt

El Salvador

Estonia

Falkland Islands

French Guiana

Gambia

Georgia

Greenland

Grenada

Guyana

Haiti

Honduras

Hong Kong

Iraq

Jersey

Johnston Atoll

Kazakhstan

Kiribati

Libya

Lithuania

Madagascar

Malawi

Mali

Marshall Islands

Martinique

Mauritania

Mauritius

Mayotte

Micronesia

Midway Islands

Moldova

Monaco

Mongolia

Montenegro

Montserrat

Morocco

Nauru

New Caledonia

Nicaragua

Niger

Niue

Norfolk Island

North Korea

North Macedonia

Northern Mariana Islands

Panama

Poland

Puerto Rico

Reunion

Saint Helena

Saint Lucia

Saint Pierre and Miquelon

Saint Vincent and The Grenadines

Samoa

Sao Tome and Principe

Senegal

Seychelles

Slovakia

Slovenia

Solomon Islands

Sri Lanka

Taiwan

Tajikistan

Tanzania

Timor Leste

Timor-Leste

Trinidad and Tobago

Tunisia

Turkmenistan

Turks and Caicos Islands

Uganda

Ukraine

Uruguay

Vanuatu

Virgin Islands, U.S.

Wake Island

Wallis and Futuna

Yemen

Zambia