| Biggest Cities in the World | 0 | - | 4.92 | 803,317 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,647 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,551 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,690 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,151 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,808 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,510 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,044 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,425 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,507 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,033 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,151 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,745 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,693 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,138 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,418 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,342 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,367 |
| Largest City by Island | 0 | - | 4.87 | 72,249 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,309 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,461 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,967 |
| Megacities on a World Map | 0 | - | 4.98 | 256,116 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,684 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,644 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,434 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,694 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,368 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,792 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,797 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,323 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,722 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,983 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,361 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,220 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,879 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,264 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,406 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,085 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,940 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,606 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,094 |
| Biggest City by Region | 0 | - | 4.50 | 36,332 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,254 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,269 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,413 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,460 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,511 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,701 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,726 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,806 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,782 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,994 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,912 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,257 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,812 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,707 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,187 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,194 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,506 |
| Biggest Cities in History | 0 | - | 4.52 | 90,439 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,691 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,414 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,972 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,545 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,205 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,617 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,613 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,714 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,890 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,999 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,795 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,379 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,855 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,518 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,129 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,115 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,885 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 30,433 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,808 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,430 |
| Countries with Megacities | 0 | - | 4.99 | 265,843 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,230 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,750 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,489 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,839 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,932 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,414 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,369 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,617 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,859 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,178 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,696 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,681 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,424 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,625 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,046 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,972 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,562 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,659 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,381 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,163 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,643 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,787 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,262 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,118 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,610 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,433 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,731 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,973 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,397 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,031 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,909 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,609 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,093 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,682 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,404 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,388 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,750 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,359 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,985 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,085 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,960 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,346 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,916 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,541 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,050 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,516 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,110 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,951 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,488 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,108 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,261 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,122 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,812 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,022 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,409 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,544 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,685 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,083 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,920 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,262 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,984 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,678 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,439 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,544 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,294 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,312 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,568 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,367 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,658 |
| Biggest Cities in France | 0 | - | 4.70 | 224,879 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,809 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,180 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,166 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,643 |
| Biggest Cities in China | 0 | - | 4.53 | 159,490 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,288 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,386 |
| Biggest Cities in India | 0 | - | 4.64 | 67,952 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,938 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,397 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,626 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,722 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,772 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,846 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,623 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,604 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,823 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,470 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,529 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,700 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,395 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,069 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,418 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,731 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,586 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,420 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,645 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,770 |
| Boundary Waters | 0 | - | 4.92 | 88,666 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,331 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,477 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,043 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,789 |
| Most Populous Islands | 0 | - | 4.80 | 123,181 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,349 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,604 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,916 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,676 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,304 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,648 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,931 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,722 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,786 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,403 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,356 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,670 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,662 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,476 |
