| Countries of Europe by Population | 0 | - | 4.98 | 178,116 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,990 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,251 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,396 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,681 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,307 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,287 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,617 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,579 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,819 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,228 |
| Europe Capital to Country | 0 | - | 4.99 | 247,944 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,479 |
| European Capitals by Map | 0 | - | 4.99 | 136,309 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,207 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,629 |
| European Coastal Capitals | 0 | - | 4.95 | 89,780 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,863 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,477 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,639 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,017 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,871 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,002 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,831 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,015 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,052 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,086 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,604 |
| Official Cities in the UK | 0 | - | 4.89 | 280,584 |
| Cities in European History #1 | 0 | - | 4.63 | 133,145 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,422 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,141 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,716 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,781 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,053 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,497 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,808 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,219 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,973 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,877 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,674 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,905 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,191 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,671 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,265 |
| Countries with Megacities | 0 | - | 4.99 | 246,980 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,154 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,995 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,570 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,892 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,505 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,200 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,085 |
| Random European Capital to Country | 0 | - | 4.98 | 189,236 |
| Random European Country to Capital | 0 | - | 4.92 | 147,474 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,124 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,849 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,945 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,896 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,500 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,616 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,412 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,480 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,281 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,205 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,663 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,701 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,965 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,878 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,072 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,501 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,536 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,666 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,593 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,062 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,837 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,176 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,759 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,695 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,541 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,775 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,812 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,311 |
| Name a City - European Countries | 0 | - | 4.92 | 64,418 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,378 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,998 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,833 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,331 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,653 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,506 |
| Biggest Cities in History | 0 | - | 4.52 | 89,135 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,122 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,199 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,329 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,946 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,039 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,279 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,605 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,729 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,656 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,091 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,156 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,352 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,949 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,415 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,605 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,307 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,497 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,863 |
| Largest City by Island | 0 | - | 4.87 | 71,054 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,558 |
| Megacities on a World Map | 0 | - | 4.98 | 250,998 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,320 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,804 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,876 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,116 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,931 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,784 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,149 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,163 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,488 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,372 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,842 |
| Former Capitals | 0 | - | 4.88 | 71,146 |
| Asia Capital to Country | 0 | - | 4.96 | 125,771 |
| African Capitals by Map | 0 | - | 4.99 | 132,192 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,153 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,192 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,847 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,428 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,389 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,386 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,487 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,133 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,120 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,412 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,152 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,360 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,572 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,519 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,301 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,330 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,923 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,680 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,189 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,462 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,310 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,110 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,200 |
| Most Populous Islands | 0 | - | 4.79 | 121,999 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,203 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,408 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,618 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,725 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,850 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,940 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,324 |
| European Cities with the Biggest Economies | 0 | - | 4.62 | 38,188 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,648 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,809 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,157 |
| Word Scramble - European Capitals | 0 | - | 4.72 | 93,775 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,852 |
| Biggest British Empire Countries | 0 | - | 4.75 | 95,464 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,901 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,746 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,763 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,366 |
| Capitals of the Stans | 0 | - | 4.95 | 26,413 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,959 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,236 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,539 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,122 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,857 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,606 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,820 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,817 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,779 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,397 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,768 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,409 |
| Boroughs of London | 0 | - | 4.63 | 87,060 |
| London Geography | 0 | - | 4.47 | 59,464 |
| UK Immigration by Country | 0 | - | 4.94 | 139,668 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,272 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,184 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,244 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,307 |
| Boundary Waters | 0 | - | 4.92 | 88,047 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,818 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,294 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,312 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,850 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,741 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 102,846 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,795 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,921 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,906 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,708 |
| Biggest City by Region | 0 | - | 4.50 | 35,997 |
