| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,684 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,637 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,780 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,253 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,540 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,516 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,581 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,056 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,123 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,012 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,675 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,199 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,499 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,561 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,087 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,167 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,424 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,980 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,021 |
| Largest City by Island | 0 | - | 4.87 | 71,487 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,646 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,344 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,054 |
| Megacities on a World Map | 0 | - | 4.98 | 252,551 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,885 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,065 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,457 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,781 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,845 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,891 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,501 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,271 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,781 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,683 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,625 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,720 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,309 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,372 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,232 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,517 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,273 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,005 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,866 |
| Biggest City by Region | 0 | - | 4.50 | 36,081 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,017 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,812 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,874 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,871 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,119 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,300 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,106 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,079 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,358 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,204 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,903 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,329 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,378 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,642 |
| Biggest Cities in Europe | 0 | - | 4.72 | 544,234 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,842 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,273 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,292 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,513 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,508 |
| Biggest Cities in History | 0 | - | 4.52 | 89,877 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,239 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,304 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,335 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,902 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,293 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,004 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,315 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,869 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,357 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,956 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,011 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,728 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,515 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,439 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,247 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,782 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,069 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,956 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,382 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,436 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,477 |
| Countries with Megacities | 0 | - | 4.99 | 249,400 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,327 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,659 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,654 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,634 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,290 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,187 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,386 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,834 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,084 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,065 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,834 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,884 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,264 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,022 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,863 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,155 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,848 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,552 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,609 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,136 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,122 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,654 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,814 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,410 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,480 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,347 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,044 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,429 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,133 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,168 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,710 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,454 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,415 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,037 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,923 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,667 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,863 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,734 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,959 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,294 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,757 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,518 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,051 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,746 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,180 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,371 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,963 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,482 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,800 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,968 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,662 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,747 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,258 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,923 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,675 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,405 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,723 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,394 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,951 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,059 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,085 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,814 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,218 |
| Biggest Cities in France | 0 | - | 4.70 | 223,206 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,557 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,830 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,692 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,916 |
| Biggest Cities in China | 0 | - | 4.52 | 157,873 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,510 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,103 |
| Biggest Cities in India | 0 | - | 4.70 | 67,549 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,401 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,806 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,807 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,276 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,335 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,522 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,350 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,280 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,507 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,019 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,128 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,899 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,897 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 90,787 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,011 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,287 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,873 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,641 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,584 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,676 |
| Flags to Languages | 0 | - | 4.95 | 173,128 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 716,987 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,066 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,081 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,781 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,946 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,158 |
| Most Populous Islands | 0 | - | 4.80 | 122,656 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,255 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,474 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,926 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,752 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,593 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,419 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,718 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,066 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,870 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,050 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,506 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,211 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,519 |
