Pilot Marek Strnad has visited (landed in) a total of 71 countries but have 168 countries yet to explore.

Afghanistan

Albania

Algeria

American Samoa

Angola

Anguilla

Antarctica

Antigua and Barbuda

Armenia

Aruba

Azerbaijan

Bahamas, The

Bahrain

Bangladesh

Barbados

Belarus

Belize

Benin

Bermuda

Bhutan

Bosnia and Herzegovina

Botswana

British Indian Ocean Territory

British Virgin Islands

Brunei

Burkina Faso

Burundi

Cambodia

Cameroon

Cape Verde

Cayman Islands

Central African Republic

Chad

Chile

Christmas Island

Cocos (Keeling) Islands

Comoros

Congo

Cook Islands

Costa Rica

Cote D'Ivoire

Croatia

Djibouti

Dominica

El Salvador

Equatorial Guinea

Eritrea

Estonia

Eswatini

Ethiopia

Falkland Islands

Faroe Islands

French Guiana

French Polynesia

Gabon

Gibraltar

Grenada

Guernsey

Guinea

Guinea-Bissau

Guyana

Haiti

Honduras

Iran

Iraq

Isle Of Man

Israel

Jamaica

Jersey

Johnston Atoll

Jordan

Kazakhstan

Kenya

Kiribati

Laos

Latvia

Lebanon

Lesotho

Macau

Madagascar

Malawi

Malaysia

Mali

Malta

Marshall Islands

Mauritania

Mauritius

Mayotte

Micronesia

Midway Islands

Moldova

Monaco

Mongolia

Montenegro

Montserrat

Morocco

Mozambique

Myanmar

Nauru

Nepal

New Caledonia

Nicaragua

Niger

Niue

Norfolk Island

North Korea

Northern Mariana Islands

Oman

Pakistan

Palau

Palestine

Panama

Papua New Guinea

Paraguay

Puerto Rico

Reunion

Rwanda

Saint Helena

Saint Kitts and Nevis

Saint Lucia

Saint Pierre and Miquelon

Saint Vincent and The Grenadines

Samoa

Sao Tome and Principe

Senegal

Serbia

Seychelles

Sierra Leone

Slovakia

Slovenia

Solomon Islands

Somalia

South Sudan

Sudan

Suriname

Syria

Tajikistan

Tanzania

Timor Leste

Timor-Leste

Togo

Tonga

Trinidad and Tobago

Turkmenistan

Turks and Caicos Islands

Tuvalu

Uganda

Uruguay

Uzbekistan

Vanuatu

Venezuela

Vietnam

Virgin Islands, U.S.

Wake Island

Wallis and Futuna

Western Sahara