| Biggest Cities in the World | 0 | - | 4.90 | 696,813 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,377 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,361 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 172,609 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,403 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,542 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,136 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,732 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,338 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,792 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,441 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,763 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,157 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 375,891 |
| Biggest Cities in the United States | 0 | - | 4.93 | 843,527 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 337,234 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,744 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,622 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,189 |
| Most Populous World Capitals | 0 | - | 4.93 | 149,789 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,880 |
| Megacities on a World Map | 0 | - | 4.98 | 222,833 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 519,738 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,502 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,203 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,780 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 152,538 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,950 |
| Biggest Cities in Asia | 0 | - | 4.94 | 97,240 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,111 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,348 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,591 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,208 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,343 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 202,085 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 121,881 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 307,784 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 99,239 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,118 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,252 |
| Biggest City by Region | 0 | - | 4.50 | 33,935 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,781 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,560 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,525 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,272 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,917 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 110,940 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 142,894 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,476 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 104,188 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,436 |
| 500 Biggest US Cities | 0 | - | 4.88 | 99,980 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,349 |
| Biggest Cities in Europe | 0 | - | 4.75 | 470,925 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,841 |
| Biggest City by Island | 0 | - | 4.57 | 45,989 |
| Biggest Cities in History | 0 | - | 4.50 | 81,411 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,335 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,328 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,162 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,409 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 44,884 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,925 |
| Biggest Cities in Germany | 0 | - | 4.95 | 266,367 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,402 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,643 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 98,684 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,572 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 130,044 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,718 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,504 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,129 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,095 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,295 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,369 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,103 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,928 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,971 |
| Countries with Megacities | 0 | - | 4.99 | 200,298 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,830 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,203 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,336 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,195 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,187 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,643 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 78,205 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,322,488 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 352,113 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,435 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 69,316 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,096 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,343 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,510 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,424 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,912 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,623 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,672 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,439 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,823 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,252 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,691 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,979 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,150 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,014 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,976 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,631 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,053 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,228 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,821 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,200 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 154,072 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,283 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,635 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 204,787 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 67,438 |
| Demographics Multiple Choice | 0 | - | 4.64 | 40,044 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,910 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,190 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,509 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,673 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,256 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 37,154 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,406 |
| Countries of Europe by Population | 0 | - | 4.98 | 129,844 |
| Most Populous Countries by Year | 0 | - | 4.81 | 94,988 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,121 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 97,737 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 82,821 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 94,461 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 72,097 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,440 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,877 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,141 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 28,981 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,777 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,622 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,194 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,352 |
| Biggest Cities in France | 0 | - | 4.76 | 201,767 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,366 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,854 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,696 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,572 |
| Biggest Cities in China | 0 | - | 4.57 | 140,585 |
| Cities of Ireland | 0 | - | 4.43 | 40,113 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,752 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,923 |
| Biggest Cities in India | 0 | - | 4.71 | 62,969 |
| Biggest Cities in Italy | 0 | - | 4.66 | 219,850 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 88,833 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 74,853 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.32 | 83,108 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 88,916 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 70,726 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,261 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,879 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,219 |
| Biggest U.S. Cities A-Z | 0 | - | 4.72 | 132,402 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 206,827 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,419 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,106 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,676 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 54,037 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 67,375 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 87,744 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 144,988 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 147,407 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,595 |
| Boundary Waters | 0 | - | 4.93 | 81,625 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 75,917 |
| Most Populous Islands | 0 | - | 4.71 | 113,551 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,480 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 208,231 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 163,246 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 159,560 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 81,959 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,846 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,313 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 147,258 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 50,161 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,210 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.90 | 7,354 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,826 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 56,672 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 74,995 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.39 | 30,237 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,597 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 21,018 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,914 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,668 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 65,915 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,208 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,472 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,916 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 162,999 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,342 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,469,375 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,625 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,789 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.89 | 51,191 |
