| Biggest Cities in the World | 0 | - | 4.91 | 805,985 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,981 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,022 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,840 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,528 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,515 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,159 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,825 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,282 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,787 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,002 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,648 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,754 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,239 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,437 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,490 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,559 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,171 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,650 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,719 |
| Largest City by Island | 0 | - | 4.87 | 72,483 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,444 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,729 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,174 |
| Megacities on a World Map | 0 | - | 4.98 | 257,083 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,371 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,207 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,788 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,723 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,527 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,724 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,901 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,471 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,028 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,216 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,448 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,255 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,536 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,476 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,622 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,141 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,037 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.98 | 118,907 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,326 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,992 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,855 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,776 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,544 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,115 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,079 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,734 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,488 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,267 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,952 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,136 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,662 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,167 |
| Biggest City by Region | 0 | - | 4.50 | 36,398 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,349 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,545 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,582 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,314 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,447 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,574 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,580 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,329 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,793 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,339 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,305 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,471 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,305 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,905 |
| Biggest Cities in History | 0 | - | 4.52 | 90,625 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,073 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,616 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,714 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,685 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,167 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,188 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,990 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,609 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,124 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,774 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,030 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,785 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,506 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,631 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,404 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,367 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,040 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,056 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,729 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,161 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,186 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,999 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,140 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,372 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,923 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,167 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,926 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,851 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,761 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,622 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,569 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,214 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,364 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,750 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,700 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.67 | 75,748 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,651 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,628 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,259 |
| Countries with Megacities | 0 | - | 4.99 | 267,328 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,942 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,190 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,259 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,306 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,916 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,105 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,992 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,838 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,825 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,518 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,383 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,860 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,859 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,486 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,589 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,568 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,387 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,087 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,077 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,317 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,749 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,176 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,010 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,125 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,544 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 18,163 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,377 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,761 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,533 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,776 |
| Biggest Cities in France | 0 | - | 4.70 | 225,392 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,240 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,294 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,304 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,866 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,207 |
| Biggest Cities in China | 0 | - | 4.53 | 159,959 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,547 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,476 |
| Biggest Cities in India | 0 | - | 4.64 | 68,073 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,480 |
| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 139,623 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,582 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,486 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,361 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,303 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,710 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,930 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,256 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,650 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,002 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,484 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,557 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,927 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,452 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,592 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,590 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,813 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,858 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,900 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,937 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,696 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,704 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,923 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,246 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,466 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,930 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,411 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,722 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,786 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,920 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,212 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,702 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,556 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 49,042 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,592 |
| Cities of Ireland | 0 | - | 4.51 | 50,926 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,267 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,472 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,265 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,866 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,924 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,557 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,218 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,531 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,876 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,789 |
