| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,502 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,750 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,172 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,001 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,052 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,863 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,581 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,546 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,230 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,851 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,307 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,857 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,023 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,669 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,772 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,254 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,456 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,537 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,874 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,216 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,677 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,746 |
| Largest City by Island | 0 | - | 4.87 | 72,494 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,453 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,191 |
| Megacities on a World Map | 0 | - | 4.98 | 257,162 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,325 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,796 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,747 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,591 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,745 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,055 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,085 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,939 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,989 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,042 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,243 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,452 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,278 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,547 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,746 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,305 |
| Countries with Megacities | 0 | - | 4.99 | 267,416 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,975 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,224 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,301 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,325 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,331 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,995 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,893 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,797 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,580 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,895 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,688 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,144 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,670 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,170 |
| Biggest City by Region | 0 | - | 4.50 | 36,403 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,353 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,127 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,096 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,397 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,317 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,452 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,582 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,774 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,508 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,300 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,961 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,584 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,383 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,339 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,727 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,945 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,282 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,665 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,403 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,322 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,256 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,926 |
| Biggest Cities in History | 0 | - | 4.52 | 90,636 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,103 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,552 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,624 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,619 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,497 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,718 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,697 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,397 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,802 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,181 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,193 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,003 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,621 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,139 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,786 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,320 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,496 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,036 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,394 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,939 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,445 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,741 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,800 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,951 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,218 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,187 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,143 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,927 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,932 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,523 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,642 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,480 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,177 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,049 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,324 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,896 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,941 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,562 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,228 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,540 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,887 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,805 |
| Europe Capital to Country | 0 | - | 4.99 | 252,261 |
| Asia Capital to Country | 0 | - | 4.96 | 127,613 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,089 |
| European Capitals by Map | 0 | - | 4.99 | 142,272 |
| African Capitals by Map | 0 | - | 4.99 | 142,342 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,007 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,970 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,253 |
| European Coastal Capitals | 0 | - | 4.95 | 91,383 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,225 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,908 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,951 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,198 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,723 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,010 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,797 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,509 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,410 |
| Most Populous Islands | 0 | - | 4.80 | 123,379 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,390 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,658 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,712 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,275 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,082 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,975 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,995 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,920 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,019 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,510 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,608 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,837 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,170 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,002 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,043 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,387 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,108 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,862 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,995 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,236 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,860 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,833 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,520 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,400 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,872 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,291 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,197 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,399 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,289 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,635 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,196 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,724 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,432 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,616 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,995 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,985 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,862 |
| Capitals of the Stans | 0 | - | 4.95 | 27,182 |
| Boundary Waters | 0 | - | 4.92 | 88,794 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,430 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,754 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,407 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,005 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,819 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,176 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,719 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,716 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,593 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,169 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,500 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,593 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,585 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,090 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,350 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,180 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,013 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,128 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,546 |
