Pilot GRPO has visited (landed in) a total of 148 countries but have 92 countries yet to explore.
American Samoa
Anguilla
Antarctica
Antigua and Barbuda
Bahrain
Barbados
Belarus
Benin
Bhutan
British Indian Ocean Territory
British Virgin Islands
Burundi
Cape Verde
Cayman Islands
Christmas Island
Cocos (Keeling) Islands
Congo
Cook Islands
Cote D'Ivoire
Eritrea
Falkland Islands
Faroe Islands
French Guiana
French Polynesia
Gabon
Gambia
Gibraltar
Grenada
Guadeloupe
Guam
Guatemala
Guernsey
Guinea-Bissau
Isle Of Man
Jersey
Johnston Atoll
Kiribati
Kosovo
Kuwait
Macau
Malawi
Maldives
Malta
Marshall Islands
Martinique
Mayotte
Mexico
Micronesia
Midway Islands
Montserrat
Morocco
Mozambique
Nauru
Netherlands Antilles
New Caledonia
Niue
Norfolk Island
North Korea
Northern Mariana Islands
Palau
Palestine
Reunion
Romania
Rwanda
Saint Helena
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and The Grenadines
Samoa
Sao Tome and Principe
Seychelles
Singapore
Slovakia
Tajikistan
Tanzania
Thailand
Timor Leste
Timor-Leste
Tonga
Turks and Caicos Islands
Tuvalu
Vanuatu
Venezuela
Virgin Islands, U.S.
Wake Island
Wallis and Futuna
Western Sahara
Zambia