| Biggest Cities in the World | 0 | - | 4.91 | 791,820 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,880 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,989 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,486 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,107 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,795 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,749 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,677 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,784 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,207 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,296 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,848 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,858 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,729 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,277 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,462 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,212 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,895 |
| Biggest Cities by Language | 0 | - | 4.96 | 241,785 |
| Largest City by Island | 0 | - | 4.87 | 71,170 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,474 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,707 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,522 |
| Megacities on a World Map | 0 | - | 4.98 | 251,459 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,039 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,899 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,005 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,061 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,347 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,190 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,700 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,627 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,612 |
| Megacities on an Empty Map | 0 | - | 4.96 | 104,777 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,404 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,592 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,178 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,757 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,778 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,011 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,021 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,935 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,768 |
| Biggest City by Region | 0 | - | 4.50 | 36,024 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,938 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,057 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,247 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,967 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,279 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,999 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,221 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,447 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,561 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,490 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,832 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,964 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,703 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,633 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,725 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,260 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,550 |
| Biggest Cities in History | 0 | - | 4.52 | 89,220 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,164 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,711 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,547 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,231 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,971 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,230 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,705 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,639 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,085 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,725 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,039 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,361 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,113 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,885 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,988 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,689 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,484 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,287 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,721 |
| Countries with Megacities | 0 | - | 4.99 | 247,795 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,582 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,245 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,968 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,193 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,653 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,990 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,318 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,131 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,890 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,088 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,160 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,081 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,058 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,317 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,780 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,860 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,948 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,827 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,709 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,897 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,562 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,237 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,084 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,345 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,074 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,582 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,862 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,446 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,391 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,514 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,664 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,819 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,894 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,398 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,585 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,641 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,807 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,905 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,689 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,125 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,297 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,334 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,880 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,371 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,744 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,653 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,197 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,608 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,457 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,460 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,225 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,545 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,113 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,532 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,733 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,369 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,681 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,806 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,540 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,295 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,541 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,344 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,841 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,898 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,623 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,081 |
| Biggest Cities in France | 0 | - | 4.69 | 222,668 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,085 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,711 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,523 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,290 |
| Biggest Cities in China | 0 | - | 4.53 | 157,286 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,971 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,006 |
| Biggest Cities in India | 0 | - | 4.70 | 67,391 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,781 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,578 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,595 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,124 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,177 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,430 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,253 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,165 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,393 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,838 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,662 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,457 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,388 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,738 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,654 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,915 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,356 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,281 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,299 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,085 |
| Boundary Waters | 0 | - | 4.92 | 88,101 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,871 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,425 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,493 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,940 |
| Most Populous Islands | 0 | - | 4.79 | 122,066 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,217 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,428 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,241 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,209 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,044 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,104 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,650 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,891 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,557 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,907 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,250 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,020 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,472 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,056 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,966 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,961 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,749 |
