| Countries of Europe by Population | 0 | - | 4.98 | 177,791 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,025 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,762 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,913 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,320 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,660 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,766 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,090 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,302 |
| Biggest European Cities by Century | 0 | - | 4.98 | 139,864 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,180 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,922 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,192 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,196 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,535 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,504 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,738 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,134 |
| Europe Capital to Country | 0 | - | 4.99 | 247,345 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,334 |
| European Capitals by Map | 0 | - | 4.99 | 136,014 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,089 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,539 |
| European Coastal Capitals | 0 | - | 4.95 | 89,671 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,595 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,207 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,704 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,853 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,719 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,920 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,771 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,869 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,721 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,498 |
| Official Cities in the UK | 0 | - | 4.89 | 280,266 |
| Cities in European History #1 | 0 | - | 4.63 | 132,995 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,348 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,042 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,654 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,721 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,281 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,387 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,319 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,695 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,109 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,271 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,721 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,720 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,620 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,694 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,189 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,499 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,861 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,232 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,160 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,964 |
| Random European Capital to Country | 0 | - | 4.98 | 189,086 |
| Random European Country to Capital | 0 | - | 4.92 | 147,361 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,868 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,326 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,285 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,114 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,541 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,622 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,840 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,759 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,112 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,436 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,387 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,562 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,915 |
| Countries with Megacities | 0 | - | 4.99 | 246,316 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,841 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,760 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,292 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,699 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,709 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,339 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,386 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,742 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,478 |
| Biggest Cities in France | 0 | - | 4.69 | 221,864 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,709 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,611 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,559 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,937 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,307 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,573 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,023 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,348 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,436 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,483 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,577 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,046 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,746 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,751 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,786 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,414 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,516 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,174 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,537 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,509 |
| Biggest Cities in History | 0 | - | 4.52 | 89,060 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,090 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,632 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,740 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,733 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,382 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,439 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,778 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,466 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,976 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,081 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,669 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,599 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,383 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,161 |
| Name a City - European Countries | 0 | - | 4.92 | 64,289 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,273 |
| Most Populous Countries in 1950 | 0 | - | 4.62 | 85,675 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,292 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,081 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,092 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,195 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,790 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,316 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,489 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,239 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,268 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,732 |
| Largest City by Island | 0 | - | 4.87 | 70,974 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,436 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,137 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,576 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,520 |
| Megacities on a World Map | 0 | - | 4.98 | 250,595 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,734 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,784 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,079 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,384 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,829 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,550 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,238 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,781 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,052 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,344 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,264 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,680 |
| Former Capitals | 0 | - | 4.88 | 71,099 |
| Asia Capital to Country | 0 | - | 4.96 | 125,648 |
| African Capitals by Map | 0 | - | 4.99 | 132,081 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,907 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,601 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,571 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,001 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,093 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,152 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,462 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,387 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,385 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,716 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,617 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,595 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,239 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,027 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,994 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,191 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,984 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,968 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,635 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,707 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,884 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,072 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,873 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,186 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,498 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,056 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,482 |
| British Places A-Z | 0 | - | 4.29 | 79,581 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,804 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,311 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,155 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,584 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,144 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,622 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,321 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,134 |
| Word Scramble - European Capitals | 0 | - | 4.72 | 93,716 |
| Boroughs of London | 0 | - | 4.63 | 86,981 |
| London Geography | 0 | - | 4.47 | 59,431 |
| UK Immigration by Country | 0 | - | 4.94 | 139,513 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,241 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,852 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,128 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,691 |
| Countries of the German Empire | 0 | - | 4.51 | 37,627 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,004 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,074 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,147 |
| Capitals of the Stans | 0 | - | 4.95 | 26,376 |
