| Biggest Cities in the World | 0 | - | 4.92 | 803,405 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,665 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,568 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,719 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,163 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,879 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,521 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,053 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,703 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,435 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,512 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,038 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,162 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,799 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,719 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,216 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,435 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,352 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,377 |
| Largest City by Island | 0 | - | 4.87 | 72,253 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,312 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,472 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,975 |
| Megacities on a World Map | 0 | - | 4.98 | 256,139 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,712 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,646 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,446 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,711 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,382 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,801 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,827 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,327 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,749 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,989 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,371 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,222 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,883 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,277 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,423 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,097 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,944 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,607 |
| Biggest City by Region | 0 | - | 4.50 | 36,334 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,254 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,272 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,413 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,463 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,517 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,710 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,730 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,812 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,789 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,004 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,934 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,258 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,820 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,719 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,218 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,247 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,519 |
| Biggest Cities in History | 0 | - | 4.52 | 90,441 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,699 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,417 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,990 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,546 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,209 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,619 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,632 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,718 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,939 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,016 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,809 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,390 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,865 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,531 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,131 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,116 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,886 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 30,920 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,812 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,446 |
| Countries with Megacities | 0 | - | 4.99 | 265,874 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,238 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,752 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,497 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,850 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,941 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,418 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,373 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,632 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,861 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,254 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,714 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,684 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,427 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,638 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,049 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,972 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,575 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,675 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,388 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,169 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,653 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,787 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,267 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,121 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,611 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,435 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,734 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,981 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,405 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,034 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,910 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,611 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,102 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,687 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,412 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,395 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,764 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,363 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,993 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,087 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,961 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,347 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,921 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,541 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,052 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,549 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,111 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,955 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,490 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,111 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,282 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,124 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,814 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,026 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,415 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,547 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,687 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,087 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,920 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,264 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,985 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,679 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,444 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,544 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,297 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,314 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,573 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,369 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,662 |
| Biggest Cities in France | 0 | - | 4.70 | 224,895 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,818 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,184 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,169 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,649 |
| Biggest Cities in China | 0 | - | 4.53 | 159,501 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,295 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,387 |
| Biggest Cities in India | 0 | - | 4.64 | 67,955 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,957 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,402 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,630 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,726 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,775 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,847 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,627 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,606 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,827 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,474 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,536 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,707 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,397 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,072 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,420 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,733 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,588 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,423 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,649 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,770 |
| Boundary Waters | 0 | - | 4.92 | 88,669 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,331 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,483 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,054 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,791 |
| Most Populous Islands | 0 | - | 4.80 | 123,183 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,349 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,606 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,927 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,686 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,319 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,656 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,931 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,725 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,790 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,404 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,361 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,676 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,662 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,479 |
