| Neutral European Countries of WWII | 0 | - | 4.91 | 160,468 |
| Vietnam War Countries | 0 | - | 4.83 | 93,609 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,740 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,353 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,307 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,860 |
| South America Flags Map Quiz | 0 | - | 4.95 | 86,618 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,859 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,263 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,862 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,836 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,277 |
| Countries of Africa | 0 | - | 5.00 | 2,507,819 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,679 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,285 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,983 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,813 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,554 |
| The Only European Country ... | 0 | - | 4.91 | 213,833 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,141 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,532 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,207 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,489 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,729 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,954 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,237 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,689 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,066 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,224 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,292 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,269 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,608 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,564 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,809 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,757 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,324 |
| Countries of the Middle East | 0 | - | 4.96 | 198,911 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,262 |
| Slavic Countries | 0 | - | 4.96 | 110,857 |
| African Island Countries | 0 | - | 4.96 | 100,789 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,497 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,634 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,706 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,487 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,109 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,625 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,715 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,760 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,153 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,162 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,289 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,574 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,274 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,411 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,243 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,505 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,512 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,680 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,775 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,505 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,956 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,996 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,850 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,986 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,829 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,592 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,253 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,197 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,378 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,621 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,360 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,341 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,365 |
| Monarchies of Europe | 0 | - | 4.90 | 97,309 |
| Monarchies of Asia | 0 | - | 4.97 | 70,600 |
| Countries of the German Empire | 0 | - | 4.51 | 37,659 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,432 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,770 |
| The Only African Country ... | 0 | - | 4.99 | 128,365 |
| The Only American Country ... | 0 | - | 4.92 | 120,759 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,776 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,249 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,042 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,394 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,040 |
| European Countries with One Border | 0 | - | 4.97 | 181,624 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,521 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,108 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,976 |
| UK Immigration by Country | 0 | - | 4.94 | 139,637 |
| Central American Countries | 0 | - | 4.98 | 155,052 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,661 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,910 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,258 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,363 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,247 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,087 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,796 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,773 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,446 |
| Arms Exports - United States | 0 | - | 4.70 | 54,351 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,212 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,242 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,119 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,489 |
| Countries That Border Russia | 0 | - | 4.98 | 458,912 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,488 |
| Countries Bordering France | 0 | - | 4.83 | 399,086 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,046 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 90,217 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,501 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,198 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 82,981 |
| Germany Country Quiz | 0 | - | 4.82 | 156,544 |
| Russia Country Quiz | 0 | - | 4.85 | 113,630 |
| Italy Country Quiz | 0 | - | 4.82 | 122,202 |
| Japan Country Quiz | 0 | - | 4.92 | 141,239 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,144 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,851 |
| Tanzania Country Quiz | 0 | - | 4.91 | 32,820 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,036 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,881 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,599 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,447 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,063 |
| Random European Capital to Country | 0 | - | 4.98 | 189,206 |
| Random European Country to Capital | 0 | - | 4.92 | 147,447 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,398 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,410 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,793 |
| Biggest British Empire Countries | 0 | - | 4.73 | 94,245 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,891 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,852 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,072 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,149 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,471 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,326 |
| Every European Country Shape | 0 | - | 4.96 | 200,169 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,702 |
| Every African Country Shape | 0 | - | 4.90 | 86,110 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,095 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,176 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,149 |
| Countries Bordering India | 0 | - | 4.98 | 162,601 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,698 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,776 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,926 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,783 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,214 |
| Countries that Border China | 0 | - | 4.96 | 261,816 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,848 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,529 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,081 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,227 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,747 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,306 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,486 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,450 |
| Countries that Border Poland | 0 | - | 4.99 | 171,349 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,462 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,851 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 76,939 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,704 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,269 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,533 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,305 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,376 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,506 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,806 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 54,890 |
| Countries Closest to Indonesia | 0 | - | 4.96 | 103,956 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,359 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 63,752 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,344 |
| Countries Closest to India | 0 | - | 4.97 | 102,205 |
| Countries Closest to Japan | 0 | - | 4.92 | 137,907 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,321 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 68,531 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,110 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,100 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,316 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,297 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,276 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,991 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,616 |
| Hindu Countries | 0 | - | 4.85 | 49,580 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,733 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,596 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,418 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,066 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,550 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,282 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,849 |
| Closest Countries to North Korea | 0 | - | 4.94 | 121,803 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,578 |
| Countries that Beat China | 0 | - | 4.86 | 114,707 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,893 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,615 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,760 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,411 |
