| Biggest Cities in the World | 0 | - | 4.91 | 800,219 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,182 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,893 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,625 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,609 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,504 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,026 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,695 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,158 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,060 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,216 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,744 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,814 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,848 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,379 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,134 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,561 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,934 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,824 |
| Largest City by Island | 0 | - | 4.87 | 71,998 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,107 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,117 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,679 |
| Megacities on a World Map | 0 | - | 4.98 | 255,077 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,990 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,455 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,092 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,001 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,584 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,434 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,233 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,170 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,357 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,603 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,128 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,972 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,598 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,649 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,994 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,580 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,686 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,547 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,025 |
| Biggest City by Region | 0 | - | 4.50 | 36,264 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,177 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,215 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,370 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,443 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,335 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,334 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,466 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,452 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,625 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,661 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,962 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,314 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,406 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,916 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,167 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 163,440 |
| Biggest Cities in History | 0 | - | 4.52 | 90,252 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 77,852 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,263 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,383 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,460 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,902 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,513 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,826 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,471 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,733 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,521 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,109 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,527 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,222 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,072 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,087 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,837 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,565 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,682 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,758 |
| Countries with Megacities | 0 | - | 4.99 | 264,241 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,617 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,400 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,883 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,463 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,383 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,174 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,246 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,015 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,613 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,342 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,776 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,548 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,340 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,649 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,614 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,984 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,942 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,893 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,392 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,177 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,711 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,380 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,703 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,999 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,842 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,074 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,059 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,510 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,672 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,175 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,848 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,787 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,418 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,735 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,478 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,179 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,230 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,254 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,013 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,465 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,046 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,897 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,283 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,732 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,497 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,015 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,029 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,028 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,874 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,435 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,980 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,236 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,798 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,674 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,624 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,063 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,269 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,434 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,949 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,845 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,151 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,888 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,596 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,220 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,479 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,154 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,227 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,397 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,184 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,478 |
| Biggest Cities in France | 0 | - | 4.70 | 224,272 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,339 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,051 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,978 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,370 |
| Biggest Cities in China | 0 | - | 4.53 | 158,882 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,988 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,273 |
| Biggest Cities in India | 0 | - | 4.64 | 67,810 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,336 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,222 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,450 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,582 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,638 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,758 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,536 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,511 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,724 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,321 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,143 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,430 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,275 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,859 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,305 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,606 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,363 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,105 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,269 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,592 |
| Boundary Waters | 0 | - | 4.92 | 88,526 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,220 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,209 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,621 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,548 |
| Most Populous Islands | 0 | - | 4.80 | 122,996 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,316 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,553 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,184 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,090 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,550 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,266 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,862 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,523 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,446 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,277 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,077 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,492 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,605 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,367 |
