| Biggest Cities in the World | 0 | - | 4.91 | 802,123 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,471 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,318 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,286 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,937 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 146,676 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,337 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,908 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,506 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,291 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,393 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,917 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,029 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,440 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,205 |
| Biggest Cities in the United States | 0 | - | 4.94 | 982,219 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,027 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,195 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,150 |
| Largest City by Island | 0 | - | 4.87 | 72,139 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,239 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,326 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,861 |
| Megacities on a World Map | 0 | - | 4.98 | 255,677 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,009 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,571 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,290 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,437 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,844 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,657 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,506 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,260 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,197 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,843 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,260 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,131 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,786 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,008 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,224 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,874 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,822 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,587 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,067 |
| Biggest City by Region | 0 | - | 4.50 | 36,303 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,219 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,243 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,390 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,405 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,480 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,527 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,544 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,662 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,650 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,837 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 83,449 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,132 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,628 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,602 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,617 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,374 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 165,239 |
| Biggest Cities in History | 0 | - | 4.52 | 90,358 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,459 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,343 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,725 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,510 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,080 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,570 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,276 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,670 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,605 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,849 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,651 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,256 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,696 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,374 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,106 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,101 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,865 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,580 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,759 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,149 |
| Countries with Megacities | 0 | - | 4.99 | 265,183 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,969 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,612 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,233 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,681 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,722 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,316 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,315 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,354 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,711 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,590 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,318 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,622 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,391 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,209 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,018 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,956 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,055 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,493 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,272 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,012 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,512 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,142 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,026 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,394 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,279 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,643 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,838 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,296 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,950 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,860 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,533 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,946 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,579 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,313 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,327 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,560 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,230 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,873 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,066 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,925 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,316 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,837 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,524 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,037 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,983 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,075 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,915 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,457 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,057 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,819 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,975 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,744 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,848 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,257 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,419 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,565 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,025 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,894 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,225 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,940 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,648 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,366 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,514 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,246 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,276 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,501 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,297 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,587 |
| Biggest Cities in France | 0 | - | 4.70 | 224,608 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,627 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,126 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,088 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,539 |
| Biggest Cities in China | 0 | - | 4.53 | 159,242 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,169 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,332 |
| Biggest Cities in India | 0 | - | 4.64 | 67,902 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,651 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,324 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,546 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,661 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,721 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,814 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,586 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,559 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,785 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,410 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,382 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,578 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,342 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,986 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,373 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,679 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,486 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,294 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,474 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,708 |
| Boundary Waters | 0 | - | 4.92 | 88,621 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,292 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,367 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,873 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,699 |
| Most Populous Islands | 0 | - | 4.80 | 123,107 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,334 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,586 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,544 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,388 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,900 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,468 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,897 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,633 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,605 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,341 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,218 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,580 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,641 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,430 |
