| Biggest Cities in the World | 0 | - | 4.90 | 695,820 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 375,483 |
| Biggest Cities in the United States | 0 | - | 4.93 | 842,649 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 337,023 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,312 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,244 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 172,337 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,278 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,364 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,035 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,634 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,240 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,762 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,368 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,734 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,078 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 519,230 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,676 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,461 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,158 |
| Most Populous World Capitals | 0 | - | 4.93 | 149,680 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,806 |
| Megacities on a World Map | 0 | - | 4.98 | 222,648 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,432 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,134 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,668 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 152,392 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,847 |
| Biggest Cities in Asia | 0 | - | 4.94 | 97,122 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,061 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,279 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,510 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,174 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,294 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 201,911 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 121,730 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 307,472 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 99,075 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 142,356 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,405 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 103,853 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,343 |
| 500 Biggest US Cities | 0 | - | 4.88 | 99,780 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,238 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,157 |
| Biggest Cities in Europe | 0 | - | 4.76 | 470,282 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,094 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,234 |
| Biggest City by Region | 0 | - | 4.50 | 33,912 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,751 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,290 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,061 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,542 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,431 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 44,784 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,253 |
| Biggest Cities in Germany | 0 | - | 4.95 | 266,076 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,850 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,612 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 78,005 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,781 |
| Biggest City by Island | 0 | - | 4.57 | 45,972 |
| Biggest Cities in History | 0 | - | 4.50 | 81,316 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,295 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,386 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,890 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,490 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,317 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,591 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 98,585 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,494 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 129,938 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,628 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,691 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 110,751 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,478 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,116 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,089 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,283 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,355 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,422 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,081 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 69,276 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,071 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,283 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,343 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,423 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,142 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,321,325 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,641 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,757 |
| Countries with Megacities | 0 | - | 4.99 | 200,032 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,590 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,079 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,135 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,064 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,817 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,786 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 153,939 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,288 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,564 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,900 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,494 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,633 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,390 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,725 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,150 |
| Name a World Capital A-Z | 0 | - | 4.99 | 142,337 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,847 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,158 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,358 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,641 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,231 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.39 | 30,213 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 37,070 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,357 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,612 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,874 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,980 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,903 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,918 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,505 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,993 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,536 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,845 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,040 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,272 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,717 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,139 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,303 |
| Biggest Cities in France | 0 | - | 4.76 | 201,523 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,244 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,804 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,633 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,471 |
| Biggest Cities in China | 0 | - | 4.57 | 140,401 |
| Cities of Ireland | 0 | - | 4.43 | 40,069 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,652 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,892 |
| Biggest Cities in India | 0 | - | 4.71 | 62,907 |
| Biggest Cities in Italy | 0 | - | 4.66 | 219,602 |
| Countries of Europe by Population | 0 | - | 4.98 | 129,514 |
| Most Populous Countries by Year | 0 | - | 4.81 | 94,853 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,071 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 97,620 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 82,351 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 94,371 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 71,951 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 28,939 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,602 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 88,719 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 74,749 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.32 | 82,996 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 88,806 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 70,628 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,162 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,847 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,184 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 206,655 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,334 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,065 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,620 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,998 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 67,331 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 87,649 |
| Countries with the Most Christians | 0 | - | 4.93 | 123,042 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 73,869 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 144,872 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 147,051 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 108,120 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 100,581 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 178,396 |
| Most Populous Country by First Two Letters | 0 | - | 4.75 | 67,393 |
| Demographics Multiple Choice | 0 | - | 4.64 | 40,025 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,813 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,639 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 74,942 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,587 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 20,972 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,866 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,614 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 65,758 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,152 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,430 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,899 |
| Biggest Cities in North Carolina | 0 | - | 4.65 | 32,302 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 207,947 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 163,036 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 159,316 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 81,857 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,181 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 147,149 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,140 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.90 | 7,221 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,720 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,628 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 93,599 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,839 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,570 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 23,785 |
