| Biggest Cities in the World | 0 | - | 4.91 | 796,547 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,445 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,887 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,091 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,862 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,760 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,353 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,189 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,438 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,662 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,760 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,344 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,358 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,826 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,462 |
| Biggest Cities in the United States | 0 | - | 4.94 | 975,396 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,518 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,010 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,976 |
| Largest City by Island | 0 | - | 4.87 | 71,660 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,775 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,651 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,235 |
| Megacities on a World Map | 0 | - | 4.98 | 253,320 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,963 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,202 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,677 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,189 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,064 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,889 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,627 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,889 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,729 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,094 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,797 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,787 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,391 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,871 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,494 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,955 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,389 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,043 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,919 |
| Biggest City by Region | 0 | - | 4.50 | 36,118 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,050 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,149 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,323 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,161 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,358 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,646 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,875 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,021 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,052 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,123 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,225 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,566 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,472 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,034 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,323 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,823 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,045 |
| Biggest Cities in History | 0 | - | 4.52 | 89,999 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 75,716 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,955 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,626 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,351 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,504 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,388 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,964 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,109 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,448 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,198 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,513 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,099 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,867 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,999 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,030 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,754 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,533 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,520 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,972 |
| Countries with Megacities | 0 | - | 4.99 | 258,690 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,843 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,961 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,128 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,967 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,616 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,943 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,139 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,318 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,462 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,054 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,665 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,380 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,237 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.69 | 64,069 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,491 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,866 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,912 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,490 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,157 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,974 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,350 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,041 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,717 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,539 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,376 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,664 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,255 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,355 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,914 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,641 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,668 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,157 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,337 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,239 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,876 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,992 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,699 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,169 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,983 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,799 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,213 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,544 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,445 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,956 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,810 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,908 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,772 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,336 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,827 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,131 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,372 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,494 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,199 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,690 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,964 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,147 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,817 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,776 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,012 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,741 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,471 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,849 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,435 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,011 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,190 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,914 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,302 |
| Biggest Cities in France | 0 | - | 4.70 | 223,583 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,837 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,893 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,784 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,061 |
| Biggest Cities in China | 0 | - | 4.52 | 158,214 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,672 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,160 |
| Biggest Cities in India | 0 | - | 4.63 | 67,654 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,734 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,996 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,204 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,418 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,478 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,633 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,445 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,392 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,604 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,109 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,715 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,090 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,070 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,408 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,153 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,430 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,071 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,774 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,889 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,346 |
| Boundary Waters | 0 | - | 4.92 | 88,371 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,074 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,896 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,151 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,322 |
| Most Populous Islands | 0 | - | 4.80 | 122,779 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,274 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,502 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,419 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,499 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,010 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,616 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,767 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,342 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,032 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,124 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,659 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,304 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,546 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,242 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,114 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,158 |
