Pilot AirlockDoc has visited (landed in) a total of 109 countries but have 131 countries yet to explore.
Afghanistan
Albania
American Samoa
Antarctica
Argentina
Armenia
Azerbaijan
Bahrain
Bangladesh
Belarus
Bermuda
Bhutan
Bolivia
Bosnia and Herzegovina
British Indian Ocean Territory
British Virgin Islands
Brunei
Bulgaria
Burkina Faso
Cambodia
Cape Verde
Central African Republic
Chad
Chile
China
Christmas Island
Cocos (Keeling) Islands
Comoros
Cook Islands
Croatia
Czech Republic
Denmark
Djibouti
Eritrea
Estonia
Falkland Islands
Faroe Islands
Fiji
Georgia
Greenland
Guam
Guernsey
Honduras
Hungary
Isle Of Man
Israel
Japan
Jersey
Johnston Atoll
Jordan
Kazakhstan
Kenya
Kiribati
Korea
Kosovo
Kuwait
Kyrgyzstan
Libya
Libyan Arab Jamahiriya
Lithuania
Luxembourg
Macau
Marshall Islands
Mauritius
Mayotte
Micronesia
Midway Islands
Moldova
Monaco
Mongolia
Montenegro
Myanmar
Nauru
New Caledonia
Niger
Niue
Norfolk Island
North Korea
North Macedonia
Northern Mariana Islands
Palestine
Papua New Guinea
Paraguay
Poland
Russia
Saint Helena
Saint Pierre and Miquelon
Samoa
Saudi Arabia
Serbia
Seychelles
Singapore
Slovakia
Slovenia
Solomon Islands
Somalia
South Korea
Sweden
Thailand
Timor Leste
Timor-Leste
Tonga
Tunisia
Turkmenistan
Tuvalu
Ukraine
Uruguay
Uzbekistan
Vanuatu
Vietnam
Wake Island
Wallis and Futuna
Yemen