| Most Populous World Capitals | 0 | - | 4.94 | 176,702 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,627 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,449 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,939 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,963 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,782 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,418 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,470 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,007 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,793 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,255 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,646 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,967 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,622 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,729 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,214 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,403 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,388 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,121 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,051 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,021 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,102 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,607 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,674 |
| Largest City by Island | 0 | - | 4.87 | 72,454 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,425 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,144 |
| Megacities on a World Map | 0 | - | 4.98 | 256,956 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,771 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,672 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,444 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,669 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,987 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,463 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,071 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,724 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,877 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,852 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,014 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,994 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,160 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,424 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,745 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,223 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,517 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,265 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,448 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,317 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,981 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,787 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,733 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,476 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,220 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,520 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,173 |
| Countries with Megacities | 0 | - | 4.99 | 267,144 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,864 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,137 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,175 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,250 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,111 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,653 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,158 |
| Biggest City by Region | 0 | - | 4.50 | 36,392 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,339 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,073 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,040 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,327 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,307 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,442 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,557 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,643 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,452 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,208 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,919 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,572 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,829 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,076 |
| Random European Capital to Country | 0 | - | 4.98 | 192,152 |
| Random European Country to Capital | 0 | - | 4.93 | 165,905 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,990 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,421 |
| Random African Capital to Country | 0 | - | 4.97 | 101,363 |
| Random African Country to Capital | 0 | - | 4.95 | 71,759 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,331 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,049 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,669 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,906 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,220 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,617 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,176 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,529 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,488 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,444 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,242 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,780 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,229 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,864 |
| Biggest Cities in History | 0 | - | 4.52 | 90,602 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,015 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,612 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,702 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,669 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,411 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,597 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,453 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,068 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,021 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,138 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,167 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,961 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,578 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,097 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,746 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,411 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,031 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,387 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,913 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,362 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,683 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,758 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,898 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,200 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,181 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,139 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,918 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,773 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,495 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,909 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,291 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,822 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,898 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,531 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,202 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,518 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,862 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,776 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,668 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,934 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,987 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,570 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,006 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,248 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,747 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,549 |
| Most Populous Islands | 0 | - | 4.80 | 123,334 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,384 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,650 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,982 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,494 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,808 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,146 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,984 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,336 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,138 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,100 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,831 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,990 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,162 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,807 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,805 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,501 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,351 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,833 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,842 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,798 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,470 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,581 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,541 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,083 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,262 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,168 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,002 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,120 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,537 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,194 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,418 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,497 |
| Boundary Waters | 0 | - | 4.92 | 88,766 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,412 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,704 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,351 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,970 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,134 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,994 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,898 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,358 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,064 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,741 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,611 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,585 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,393 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,374 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,727 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,514 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,758 |
| Biggest Cities in France | 0 | - | 4.70 | 225,318 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,176 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,279 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,282 |
