| Biggest Cities in the World | 0 | - | 4.91 | 806,512 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,045 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,110 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,903 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,681 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,597 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,377 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,893 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,345 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,050 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,690 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,803 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,276 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,596 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,986 |
| Biggest Cities in the United States | 0 | - | 4.94 | 988,446 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,325 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,721 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,783 |
| Largest City by Island | 0 | - | 4.87 | 72,522 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,471 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,793 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,211 |
| Megacities on a World Map | 0 | - | 4.98 | 257,283 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,542 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,813 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,786 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,663 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,786 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,074 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,286 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,466 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,146 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,318 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,568 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,347 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,008 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,969 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,847 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,642 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,170 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,673 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,173 |
| Biggest City by Region | 0 | - | 4.50 | 36,408 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,358 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,320 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,455 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,590 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,591 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,093 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,135 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,173 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,142 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,458 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,861 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,542 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,360 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,001 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,543 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,194 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,975 |
| Biggest Cities in History | 0 | - | 4.52 | 90,664 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,145 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,574 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,708 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,632 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,538 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,723 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,503 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,814 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,205 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,210 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,027 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,640 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,169 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,816 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,193 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,147 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,930 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,946 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,392 |
| Countries with Megacities | 0 | - | 4.99 | 267,596 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,037 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,271 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,378 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,374 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,589 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,657 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,493 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,239 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,070 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,369 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,804 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,822 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,519 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,485 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,114 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,997 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,879 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,848 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,541 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,422 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,892 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,875 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,534 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,422 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,423 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,770 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,961 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,317 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,685 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,184 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,014 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,063 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,429 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,884 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,660 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,601 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,289 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,608 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,200 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,133 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,041 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,403 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,511 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,603 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,096 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,412 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,189 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,025 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,551 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,232 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,450 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,541 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,951 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,491 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,784 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,843 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,991 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,236 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,013 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,417 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,094 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,764 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,674 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,595 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,427 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,393 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,051 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,566 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,803 |
| Biggest Cities in France | 0 | - | 4.72 | 225,515 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,302 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,315 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,323 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,927 |
| Biggest Cities in China | 0 | - | 4.53 | 160,090 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,605 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,490 |
| Biggest Cities in India | 0 | - | 4.64 | 68,102 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,614 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,616 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,842 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,874 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,918 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,953 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,703 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,718 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,934 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,657 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,942 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,968 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,587 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,254 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,557 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,908 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,830 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,764 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,049 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,944 |
| Boundary Waters | 0 | - | 4.92 | 88,815 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,435 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,783 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,465 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,027 |
| Most Populous Islands | 0 | - | 4.80 | 123,404 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,395 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,667 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,801 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,344 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,180 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 105,024 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,005 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,950 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,061 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,531 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,645 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,864 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,716 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,575 |
