Pilot John McClane has visited (landed in) a total of 53 countries but have 187 countries yet to explore.
Albania
Algeria
American Samoa
Angola
Antarctica
Austria
Bahamas, The
Bahrain
Bangladesh
Barbados
Belarus
Bolivia
Bosnia and Herzegovina
Botswana
Brazil
British Indian Ocean Territory
Brunei
Bulgaria
Burkina Faso
Burundi
Cambodia
Cameroon
Cape Verde
Cayman Islands
Central African Republic
Chad
Chile
Christmas Island
Cocos (Keeling) Islands
Colombia
Comoros
Congo
Congo (DRC)
Cook Islands
Costa Rica
Cote D'Ivoire
Croatia
Cyprus
Czech Republic
Djibouti
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Eswatini
Ethiopia
Falkland Islands
Fiji
French Polynesia
Gabon
Greenland
Guinea
Guinea-Bissau
Guyana
Honduras
Hungary
Indonesia
Isle Of Man
Jamaica
Jersey
Johnston Atoll
Jordan
Kazakhstan
Kenya
Kiribati
Korea
Kosovo
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Libyan Arab Jamahiriya
Lithuania
Luxembourg
Macau
Madagascar
Malawi
Marshall Islands
Mauritania
Mauritius
Mayotte
Mexico
Micronesia
Midway Islands
Moldova
Mongolia
Montenegro
Morocco
Mozambique
Myanmar
Namibia
Nauru
Nepal
Netherlands
Netherlands Antilles
New Caledonia
Nicaragua
Niger
Nigeria
Niue
Norfolk Island
North Korea
North Macedonia
Northern Mariana Islands
Palestine
Panama
Papua New Guinea
Paraguay
Russia
Rwanda
Saint Helena
Samoa
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Slovakia
Slovenia
Solomon Islands
Somalia
South Africa
South Korea
South Sudan
Sri Lanka
Sudan
Suriname
Sweden
Switzerland
Syria
Taiwan
Tajikistan
Tanzania
Thailand
Timor Leste
Timor-Leste
Togo
Tonga
Tunisia
Turkmenistan
Turks and Caicos Islands
Tuvalu
Uganda
Ukraine
United Arab Emirates
Uruguay
Uzbekistan
Vanuatu
Venezuela
Vietnam
Wake Island
Wallis and Futuna
Western Sahara
Yemen
Zambia
Zimbabwe