| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,120 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,747 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,498 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,279 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,228 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,450 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,600 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,940 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,539 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,485 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,558 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,032 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,864 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,783 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,558 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,475 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,266 |
| US States and State Capitals | 0 | - | 4.99 | 165,539 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,085 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,376 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,806 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,955 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,656 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,185 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,336 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,493 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,990 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,032 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,846 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,536 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,524 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,547 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,178 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,835 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,292 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,592 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,008 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,656 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,481 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,760 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,245 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,448 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,496 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,594 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,350 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,795 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,380 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,657 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,725 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,327 |
| Largest City by Island | 0 | - | 4.87 | 72,486 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,450 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,737 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,181 |
| Megacities on a World Map | 0 | - | 4.98 | 257,105 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,251 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,792 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,731 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,545 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,495 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,631 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,473 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,156 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,043 |
| Biggest Cities in California | 0 | - | 4.35 | 140,431 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,425 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,926 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,547 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,727 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,424 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,853 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,984 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,745 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,294 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,032 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,392 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,079 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,326 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,751 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,177 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,010 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,545 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,264 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,379 |
| U.S. State Flags | 0 | - | 4.89 | 173,102 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,529 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,035 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,169 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,328 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,992 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,454 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,775 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,794 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,000 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,558 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,790 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,506 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,378 |
| Biggest Cities in New Jersey | 0 | - | 4.14 | 29,362 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,306 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,902 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,041 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,090 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,079 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,741 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,294 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,496 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,995 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,203 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,750 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,649 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,044 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,059 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,491 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,592 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,919 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,087 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,578 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,211 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 636,151 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,279 |
| Countries with Megacities | 0 | - | 4.99 | 267,357 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,952 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,208 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,267 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,311 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,139 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,663 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,167 |
| Biggest City by Region | 0 | - | 4.50 | 36,399 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,351 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,315 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,447 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,576 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,636 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,406 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,583 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,833 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,538 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,781 |
| Biggest Cities in France | 0 | - | 4.70 | 225,411 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,249 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,296 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,306 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,739 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,876 |
| Biggest Cities in China | 0 | - | 4.53 | 159,974 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,551 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,477 |
| Biggest Cities in India | 0 | - | 4.64 | 68,083 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,494 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,312 |
| Which City in Canada? | 0 | - | 4.83 | 57,371 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,751 |
| Hawaiian Islands | 0 | - | 4.83 | 42,962 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,788 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,367 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,276 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,313 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,474 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,715 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,935 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,269 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,933 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,424 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,727 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,791 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,931 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,215 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,658 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,909 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,703 |
| Biggest Cities in History | 0 | - | 4.52 | 90,627 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,078 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,618 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,927 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,763 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,717 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,490 |
| Cities of Ireland | 0 | - | 4.51 | 50,928 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,267 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 24,047 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,169 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,190 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,994 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,611 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,126 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,777 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,878 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,928 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,559 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,220 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,534 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,881 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,794 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,783 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,710 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,990 |
| Cartoon Versions of U.S. States | 0 | - | 4.77 | 64,152 |
| Satellite Images - U.S. States | 0 | - | 4.54 | 45,381 |
