Pilot Bobby Allen has visited (landed in) a total of 121 countries but have 119 countries yet to explore.
Algeria
American Samoa
Anguilla
Antarctica
Antigua and Barbuda
Azerbaijan
Bahrain
Bangladesh
Barbados
Belarus
Belize
Bolivia
Botswana
British Indian Ocean Territory
British Virgin Islands
Brunei
Burkina Faso
Burundi
Cambodia
Cameroon
Cayman Islands
Central African Republic
Christmas Island
Cocos (Keeling) Islands
Comoros
Congo
Cook Islands
Costa Rica
Dominica
Dominican Republic
El Salvador
Equatorial Guinea
Eritrea
Eswatini
Falkland Islands
Gambia
Grenada
Guadeloupe
Guam
Guatemala
Guinea
Guinea-Bissau
Guyana
Honduras
Johnston Atoll
Kiribati
Korea
Kosovo
Kuwait
Kyrgyzstan
Liberia
Libya
Libyan Arab Jamahiriya
Macau
Malawi
Maldives
Mali
Marshall Islands
Mauritania
Midway Islands
Monaco
Mongolia
Montserrat
Morocco
Mozambique
Namibia
Nauru
Nicaragua
Niger
Nigeria
Niue
Norfolk Island
North Korea
North Macedonia
Northern Mariana Islands
Oman
Palau
Palestine
Panama
Paraguay
Puerto Rico
Qatar
Reunion
Rwanda
Saint Helena
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Samoa
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
South Korea
Suriname
Syria
Timor Leste
Timor-Leste
Togo
Tonga
Trinidad and Tobago
Tunisia
Turkmenistan
Turks and Caicos Islands
Tuvalu
Uganda
Uruguay
Uzbekistan
Virgin Islands, U.S.
Wake Island
Wallis and Futuna
Western Sahara
Yemen
Zambia
Zimbabwe