| Biggest Cities in Asia | 0 | - | 4.94 | 95,656 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,336 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,070 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.90 | 91,674 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,140 |
| Biggest Cities in the World | 0 | - | 4.89 | 685,087 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,578 |
| Biggest Cities in Germany | 0 | - | 4.95 | 262,490 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,191 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 75,746 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,191 |
| Biggest City in Every Country | 0 | - | 4.97 | 78,561 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 169,251 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 91,813 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 95,869 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 64,705 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 198,848 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,166 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 370,342 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,035 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,283 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 303,433 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,223 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,564 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,293 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.96 | 55,041 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 106,037 |
| Biggest Cities in the United States | 0 | - | 4.92 | 814,107 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 333,089 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,856 |
| Biggest Cities by Language | 0 | - | 4.95 | 213,640 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,723 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,137 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,574 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 131,483 |
| Megacities on a World Map | 0 | - | 4.98 | 220,411 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 43,866 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 512,356 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,764 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,253 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,341 |
| 500 Biggest US Cities | 0 | - | 4.87 | 97,668 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,196 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,068 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 150,922 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 50,842 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,925 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,565 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,603 |
| Biggest Cities in Europe | 0 | - | 4.75 | 463,223 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,373 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,234 |
| Biggest Cities in China | 0 | - | 4.64 | 138,130 |
| Biggest Cities in India | 0 | - | 4.72 | 62,282 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,891 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,522 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,837 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,664 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,780 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,856 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,473 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,682 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,499 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,769 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,323 |
| Biggest Cities in France | 0 | - | 4.76 | 198,997 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,198 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,058 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,990 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,252 |
| Cities of Ireland | 0 | - | 4.43 | 39,672 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,245 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,500 |
| Biggest Cities in Italy | 0 | - | 4.65 | 216,738 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,278 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,490 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,025 |
| Biggest City by Region | 0 | - | 4.49 | 33,591 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,309 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,330 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,420 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,451 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 46,968 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,312 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,260 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,524 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,869 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 77,790 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,850 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,276 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,935 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,737 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,101 |
| Biggest City by Island | 0 | - | 4.57 | 45,728 |
| Biggest Cities in History | 0 | - | 4.50 | 80,062 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 67,902 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,080 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,525 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,617 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,505 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,765 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 112,019 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,739 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,467 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 110,297 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 128,590 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,506 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,193 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,503 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,749 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,908 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,091 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 29,157 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.21 | 17,002 |
| Biggest U.S. Cities A-Z | 0 | - | 4.63 | 122,002 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,933 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,521 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 98,988 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,127 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,949 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,637 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,011 |
| Five Biggest Cities by Country | 0 | - | 4.67 | 152,230 |
| Biggest City by Region #2 | 0 | - | 4.45 | 23,091 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,217 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,825 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,233 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,432 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,686 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,821 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,673 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,253 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,898 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 193,539 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,308,917 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 348,812 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,389 |
| Countries with Megacities | 0 | - | 4.99 | 196,508 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 170,942 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,587 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 94,870 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 63,545 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,156 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,592 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 37,127 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 90,802 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,534 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,911 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,414 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,173 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,801 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,796 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,889 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,671 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,476 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,068 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 64,920 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,815 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 65,929 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,641 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,792 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,818 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 68,335 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,376 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,227 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,530 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,155 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 14,666 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 83,203 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.38 | 69,635 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,953 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,581 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,956 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,720 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,950 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,390 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 27,880 |
| Biggest Cities in California | 0 | - | 4.35 | 130,270 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,284 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,767 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,627 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,642 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,230 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,339 |
| Countries of Europe by Population | 0 | - | 4.98 | 125,988 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,531 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,307 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,050 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,211 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 68,513 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,805 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 28,349 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,327 |
| Cities on Interstate 90 on a Map | 0 | - | 4.40 | 25,188 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 204,923 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,398 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,508 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,008 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,574 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,845 |
