| Countries of Europe by Population | 0 | - | 4.98 | 178,030 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,914 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,206 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,386 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,221 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,279 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,256 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,600 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,555 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,799 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,208 |
| Europe Capital to Country | 0 | - | 4.99 | 247,721 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,439 |
| European Capitals by Map | 0 | - | 4.99 | 136,233 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,172 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,594 |
| European Coastal Capitals | 0 | - | 4.95 | 89,738 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,773 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,398 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,600 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,977 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,837 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,978 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,825 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,957 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,018 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,003 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,585 |
| Official Cities in the UK | 0 | - | 4.89 | 280,496 |
| Cities in European History #1 | 0 | - | 4.63 | 133,109 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,404 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,109 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,700 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,760 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,756 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,446 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,783 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,189 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,917 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,823 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,662 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,828 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,882 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,575 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,126 |
| Countries with Megacities | 0 | - | 4.99 | 246,778 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,048 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,928 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,474 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,816 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,235 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,195 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,039 |
| Random European Capital to Country | 0 | - | 4.98 | 189,191 |
| Random European Country to Capital | 0 | - | 4.92 | 147,442 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,105 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,822 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,889 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,871 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,465 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,583 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,385 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,392 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,249 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,112 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,633 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,650 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,878 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,836 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,005 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,474 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,507 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,564 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,571 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,046 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,819 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,153 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,735 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,666 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,506 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,498 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,749 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,237 |
| Name a City - European Countries | 0 | - | 4.92 | 64,380 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,137 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,821 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,812 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,252 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,592 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,472 |
| Biggest Cities in History | 0 | - | 4.52 | 89,122 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,118 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,194 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,291 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,939 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,009 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,278 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,596 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,722 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,652 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,085 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,133 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,316 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,908 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,387 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,579 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,290 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,427 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,840 |
| Largest City by Island | 0 | - | 4.87 | 71,028 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,534 |
| Megacities on a World Map | 0 | - | 4.98 | 250,914 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,177 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,790 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,860 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,107 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,906 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,711 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,134 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,141 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,452 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,336 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,797 |
| Former Capitals | 0 | - | 4.88 | 71,135 |
| Asia Capital to Country | 0 | - | 4.96 | 125,746 |
| African Capitals by Map | 0 | - | 4.99 | 132,150 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,121 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,176 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,766 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,415 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,328 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,365 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,455 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,102 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,082 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,381 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,137 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,301 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,561 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,493 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,286 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,211 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,835 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,657 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,169 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,438 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,301 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,072 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,110 |
| Most Populous Islands | 0 | - | 4.79 | 121,976 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,200 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,401 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,608 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,720 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,844 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,927 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,320 |
| European Cities with the Biggest Economies | 0 | - | 4.62 | 38,183 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,633 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,791 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,152 |
| Word Scramble - European Capitals | 0 | - | 4.72 | 93,762 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,820 |
| Biggest British Empire Countries | 0 | - | 4.73 | 92,753 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,880 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,712 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,720 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,344 |
| Capitals of the Stans | 0 | - | 4.95 | 26,403 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,947 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,221 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,531 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,113 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,855 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,565 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,815 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,812 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,777 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,350 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,732 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,388 |
| Boroughs of London | 0 | - | 4.63 | 87,040 |
| London Geography | 0 | - | 4.47 | 59,460 |
| UK Immigration by Country | 0 | - | 4.94 | 139,616 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,242 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,124 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,230 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,257 |
| Boundary Waters | 0 | - | 4.92 | 88,036 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,807 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,270 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,272 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,828 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,725 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,447 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,787 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,905 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,903 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,697 |
| Biggest City by Region | 0 | - | 4.50 | 35,994 |
