| Biggest Cities in the World | 0 | - | 4.91 | 797,481 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,692 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,217 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,553 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,097 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,271 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,585 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,349 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,658 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 54,217 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,880 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 63,857 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,491 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,043 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,815 |
| Biggest Cities in the United States | 0 | - | 4.94 | 976,710 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,780 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,153 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,170 |
| Largest City by Island | 0 | - | 4.87 | 71,756 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,846 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,783 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,327 |
| Megacities on a World Map | 0 | - | 4.98 | 253,776 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,469 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,272 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,801 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,378 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,186 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,993 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,761 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,938 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,093 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,222 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,869 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,846 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,464 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,061 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,601 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,106 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,468 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,063 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,943 |
| Biggest City by Region | 0 | - | 4.50 | 36,142 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,068 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,167 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,335 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,207 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,390 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,774 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,003 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,112 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,139 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,233 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,297 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,668 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,624 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,115 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,819 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,477 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,458 |
| Biggest Cities in History | 0 | - | 4.52 | 90,060 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,794 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,007 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,815 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,375 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,581 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,424 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,155 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,182 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,503 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,266 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,587 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,193 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,943 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,017 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,044 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,768 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,543 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,562 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,181 |
| Countries with Megacities | 0 | - | 4.99 | 261,926 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,041 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,083 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,336 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,118 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,779 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,980 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,164 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,468 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,506 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,125 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,922 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,427 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,267 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,360 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,517 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,885 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,916 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,577 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,200 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,011 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,433 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,115 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,805 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,608 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,543 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,747 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,318 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,437 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,988 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,693 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,708 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,201 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,449 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,303 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,947 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,065 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,857 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 61,870 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,996 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,818 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,232 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,590 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,457 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,964 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,884 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,934 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,791 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,355 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,852 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,400 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,468 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,536 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,310 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,778 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,053 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,217 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,848 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,798 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,046 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,780 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,504 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,913 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,452 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,042 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,233 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,987 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,345 |
| Biggest Cities in France | 0 | - | 4.70 | 223,740 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,976 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,937 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,824 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,134 |
| Biggest Cities in China | 0 | - | 4.53 | 158,378 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,752 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,180 |
| Biggest Cities in India | 0 | - | 4.63 | 67,696 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,879 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,051 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,268 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,462 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,521 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,660 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,468 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,420 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,636 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,166 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,830 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,162 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,125 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,619 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,197 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,478 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,143 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,847 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,990 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,388 |
| Boundary Waters | 0 | - | 4.92 | 88,410 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,112 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,980 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,276 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,389 |
| Most Populous Islands | 0 | - | 4.80 | 122,848 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,288 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,515 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,629 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,654 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,147 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,719 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,781 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,376 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,126 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,163 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,811 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,342 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,572 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,276 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,144 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,194 |
