| Countries of Europe by Population | 0 | - | 4.98 | 182,300 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,655 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,942 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,641 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,176 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,873 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,213 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,132 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,314 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,977 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,947 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,375 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,709 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,398 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,075 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,424 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,737 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,588 |
| Europe Capital to Country | 0 | - | 4.99 | 251,535 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,638 |
| European Capitals by Map | 0 | - | 4.99 | 141,363 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,625 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,974 |
| European Coastal Capitals | 0 | - | 4.95 | 91,077 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,264 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,040 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,833 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,694 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,329 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,659 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,729 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,812 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,776 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,081 |
| Official Cities in the UK | 0 | - | 4.89 | 285,418 |
| Cities in European History #1 | 0 | - | 4.63 | 134,430 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,390 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,814 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,459 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,571 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,622 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,049 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,292 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,111 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,692 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,466 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,329 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,227 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,435 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,558 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,563 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,718 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,735 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,294 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,711 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,947 |
| Random European Capital to Country | 0 | - | 4.98 | 191,814 |
| Random European Country to Capital | 0 | - | 4.93 | 165,659 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,332 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,744 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,389 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,319 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,473 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,419 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,052 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,214 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,002 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,405 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,217 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,116 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,453 |
| Countries with Megacities | 0 | - | 4.99 | 265,896 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,249 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,756 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,504 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,854 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,249 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,759 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,450 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,298 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,321 |
| Biggest Cities in France | 0 | - | 4.70 | 224,914 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,833 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,187 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,454 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,389 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,971 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,966 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,929 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,447 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,739 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,909 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,085 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,270 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,123 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,618 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,441 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,735 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,986 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,406 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,677 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,578 |
| Biggest Cities in History | 0 | - | 4.52 | 90,447 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,705 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,737 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,174 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,933 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,526 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,059 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,756 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,706 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,447 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,520 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,041 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,168 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,803 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,623 |
| Name a City - European Countries | 0 | - | 4.90 | 65,933 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,770 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,226 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,792 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,370 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,817 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,037 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,428 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,551 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,690 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,089 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,359 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,383 |
| Largest City by Island | 0 | - | 4.87 | 72,257 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,478 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,860 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,986 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,327 |
| Megacities on a World Map | 0 | - | 4.98 | 256,156 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,649 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,454 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,685 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,998 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,656 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,731 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,380 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,133 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,394 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,545 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,236 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,775 |
| Former Capitals | 0 | - | 4.88 | 71,601 |
| Asia Capital to Country | 0 | - | 4.96 | 127,176 |
| African Capitals by Map | 0 | - | 4.99 | 141,359 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,835 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,433 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,970 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,569 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,238 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,068 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,723 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,051 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,767 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,357 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,492 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,069 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,169 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,430 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,656 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,022 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,637 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,845 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,965 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,910 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,700 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,347 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,680 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,922 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,228 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,886 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,432 |
| British Places A-Z | 0 | - | 4.29 | 80,037 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,017 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,624 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,554 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,761 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,582 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,308 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,441 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,442 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,423 |
| Boroughs of London | 0 | - | 4.63 | 88,332 |
| London Geography | 0 | - | 4.47 | 59,808 |
| UK Immigration by Country | 0 | - | 4.94 | 141,436 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,344 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,298 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,206 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,370 |
| Countries of the German Empire | 0 | - | 4.51 | 38,107 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,614 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,870 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,420 |
| Capitals of the Stans | 0 | - | 4.95 | 27,057 |
