Pilot Evgeny Boyko has visited (landed in) a total of 169 countries but have 71 countries yet to explore.
Afghanistan
Anguilla
Antarctica
Aruba
Azerbaijan
Bahrain
Burundi
Cambodia
Chad
Christmas Island
Cocos (Keeling) Islands
Comoros
Congo
Eritrea
Ethiopia
Gabon
Guam
Guernsey
Guinea-Bissau
Iran
Iraq
Johnston Atoll
Jordan
Kiribati
Laos
Lesotho
Liberia
Libya
Libyan Arab Jamahiriya
Macau
Malawi
Marshall Islands
Mauritius
Mayotte
Micronesia
Midway Islands
Monaco
Nauru
Nepal
Niger
Niue
Norfolk Island
Northern Mariana Islands
Palestine
Qatar
Reunion
Saint Helena
Saint Pierre and Miquelon
Sao Tome and Principe
Sierra Leone
South Sudan
Sri Lanka
Sudan
Syria
Timor Leste
Timor-Leste
Tonga
Turks and Caicos Islands
Tuvalu
Ukraine
Wake Island
Wallis and Futuna