| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 177,572 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 100,722 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,021 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 92,837 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,555 |
| Asia Capitals Quiz | 0 | - | 4.97 | 663,584 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 79,203 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 85,689 |
| Countries of Europe by Population | 0 | - | 4.98 | 170,271 |
| Most Populous Countries by Year | 0 | - | 4.81 | 105,590 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.92 | 68,605 |
| Biggest European Cities by Century | 0 | - | 4.98 | 126,436 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 131,863 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,733 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 81,878 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 65,300 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,453 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,090 |
| Asia Capital to Country | 0 | - | 4.96 | 123,098 |
| Asian Capitals by Map | 0 | - | 4.98 | 57,719 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 50,943 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 225,357 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 187,453 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 163,897 |
| Biggest Cities in Asia | 0 | - | 4.94 | 105,807 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,162 |
| Biggest Cities in China | 0 | - | 4.48 | 152,491 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 170,177 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 84,690 |
| Asian Capitals - Map Quiz | 0 | - | 4.94 | 58,375 |
| Capitals of the Stans | 0 | - | 4.95 | 25,259 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 161,457 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 119,779 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 131,199 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 113,063 |
| Random Asian Country to Capital | 0 | - | 4.91 | 92,634 |
| Random Asian Capital to Country | 0 | - | 4.97 | 97,848 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 71,062 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,401,118 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 368,944 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 164,941 |
| Countries with Megacities | 0 | - | 4.99 | 224,771 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,212 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,630 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,286 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 76,112 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 307,702 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 185,975 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 162,814 |
| Biggest Cities in the World | 0 | - | 4.91 | 764,698 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,178 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 49,385 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 67,133 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 124,509 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 83,461 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 260,614 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 117,913 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 109,139 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 89,988 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 56,306 |
| Biggest City by Time Zone | 0 | - | 4.86 | 63,290 |
| Biggest City in Every Country | 0 | - | 4.98 | 92,884 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 193,610 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 104,542 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 113,920 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 75,022 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 80,676 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 403,943 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 74,850 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,260 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 66,714 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,654 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 63,761 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 123,089 |
| Biggest Cities in the United States | 0 | - | 4.94 | 932,364 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 356,767 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 45,610 |
| Name a City - European Countries | 0 | - | 4.93 | 61,404 |
| Africa Capitals Quiz | 0 | - | 4.99 | 706,854 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 79,237 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 73,834 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 92,060 |
| Biggest Cities in History | 0 | - | 4.52 | 87,326 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,254 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 558,817 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 67,347 |
| Biggest Cities in Japan | 0 | - | 4.64 | 81,082 |
| All Cities in China with Population of 1 Million | 0 | - | 4.78 | 43,710 |
| Important Cities in European History | 0 | - | 4.56 | 114,875 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 56,644 |
| China by Picture | 0 | - | 4.53 | 60,670 |
| Most Populous Countries in 1950 | 0 | - | 4.61 | 84,517 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 93,703 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 123,242 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 103,319 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 109,450 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 86,823 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 90,834 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 116,172 |
| Biggest Cities by Language | 0 | - | 4.95 | 226,470 |
| Largest City by Island | 0 | - | 4.89 | 68,658 |
| Most Populous World Capitals | 0 | - | 4.93 | 171,276 |
| Megacities on a World Map | 0 | - | 4.98 | 235,957 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,126 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 71,207 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 331,771 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 102,689 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 163,120 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 217,617 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 105,537 |
| Most-Visited Cities in Europe | 0 | - | 4.89 | 69,486 |
| Former Capitals Quiz | 0 | - | 4.87 | 69,959 |
| Europe Capital to Country | 0 | - | 4.99 | 240,667 |
| EU Capitals with No Hints | 0 | - | 4.96 | 139,505 |
| European Capitals by Map | 0 | - | 4.99 | 128,268 |
| African Capitals by Map | 0 | - | 4.99 | 126,998 |
| South America Capitals Quiz | 0 | - | 5.00 | 464,875 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.87 | 88,159 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 80,912 |
| European Coastal Capitals | 0 | - | 4.95 | 86,711 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 256,782 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.89 | 214,722 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 80,126 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 62,963 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 161,349 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 165,741 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 69,957 |
| Most Populous Islands of Europe | 0 | - | 4.55 | 25,351 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 155,721 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,622 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 70,756 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.87 | 21,125 |
| Megacities on an Empty Map | 0 | - | 4.96 | 94,613 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 48,194 |
| Official Cities in the UK | 0 | - | 4.89 | 270,925 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.91 | 23,607 |
| North America Capitals Quiz | 0 | - | 4.99 | 208,568 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 59,184 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 91,223 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 114,908 |
| Asian Coastal Capitals | 0 | - | 4.51 | 21,614 |
| European Capitals Furthest from the Sea | 0 | - | 4.90 | 71,658 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,322 |
| Name a Valid Asian Capital | 0 | - | 4.52 | 59,998 |
| European Capitals Ending in N | 0 | - | 4.92 | 79,109 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 102,659 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 127,969 |
| Most Populous Islands | 0 | - | 4.78 | 119,897 |
| Islands by Largest City #1 | 0 | - | 4.47 | 93,849 |
| Islands by Largest City #2 | 0 | - | 4.74 | 34,925 |
| Countries by Population Decrease | 0 | - | 4.45 | 48,936 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 62,715 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 55,459 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 67,354 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 71,782 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 154,907 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 215,999 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 43,088 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 76,610 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 37,604 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 110,017 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.88 | 110,979 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 59,331 |
| Most Populous Countries in 1800 | 0 | - | 4.34 | 41,012 |
| British Cities with the Most Tourists | 0 | - | 4.81 | 65,698 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 136,449 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 87,378 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 77,483 |
| Capitals of Canadian Provinces | 0 | - | 4.87 | 85,651 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 125,952 |
| Most Guessed European Capitals | 0 | - | 4.89 | 100,085 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,315 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 81,572 |
| Name a Valid European Capital | 0 | - | 4.95 | 146,372 |
| Random European Capital to Country | 0 | - | 4.97 | 184,694 |
| Random European Country to Capital | 0 | - | 4.93 | 144,237 |
| Random African Capital to Country | 0 | - | 4.97 | 87,988 |
| Random African Country to Capital | 0 | - | 4.94 | 67,896 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 79,160 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 111,458 |
| Vietnam War Countries | 0 | - | 4.81 | 91,389 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 110,654 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 70,547 |
| Every Asian Country Shape | 0 | - | 4.94 | 83,789 |
| Countries that Border China | 0 | - | 4.96 | 258,049 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 74,831 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 58,041 |
| Countries Closest to Japan | 0 | - | 4.92 | 135,101 |
| China Cities Map Quiz | 0 | - | 4.90 | 95,748 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 98,021 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 67,607 |
| Second Biggest Cities by Country | 0 | - | 4.42 | 56,217 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,013 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,537 |
| Biggest City by Region | 0 | - | 4.50 | 35,376 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,201 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 54,531 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 99,088 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,516 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 51,793 |
