| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 98,653 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 329,742 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 214,855 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 130,404 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 109,089 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 112,365 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 52,449 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 34,777 |
| Biggest Cities in the World | 0 | - | 4.91 | 758,906 |
| Biggest Cities in Asia | 0 | - | 4.94 | 105,140 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 47,847 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 47,749 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 401,748 |
| Biggest Cities in the United States | 0 | - | 4.94 | 924,533 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 354,788 |
| Biggest City by Time Zone | 0 | - | 4.87 | 62,567 |
| Biggest City in Every Country | 0 | - | 4.98 | 91,768 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 191,436 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 103,605 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 112,716 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 74,273 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 79,987 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 74,029 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 45,960 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 66,163 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,406 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 63,115 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 121,781 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 37,567 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 154,145 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 42,542 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 555,206 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 76,140 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 36,897 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.88 | 109,836 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 58,742 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 115,678 |
| Biggest Cities by Language | 0 | - | 4.95 | 225,586 |
| Largest City by Island | 0 | - | 4.89 | 68,130 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.92 | 68,296 |
| Most Populous World Capitals | 0 | - | 4.93 | 170,582 |
| Biggest European Cities by Century | 0 | - | 4.98 | 126,004 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 71,580 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 54,281 |
| Megacities on a World Map | 0 | - | 4.98 | 234,731 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 49,972 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 64,723 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 70,603 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 101,764 |
| Biggest Cities in Germany | 0 | - | 4.95 | 282,730 |
| Biggest Cities in Canada | 0 | - | 4.56 | 128,568 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 162,284 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 163,103 |
| Biggest Cities in Europe | 0 | - | 4.74 | 524,403 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.27 | 108,621 |
| Megacities on an Empty Map | 0 | - | 4.95 | 94,132 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,108 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.86 | 87,688 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 39,906 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 91,288 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 45,244 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 63,368 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 58,905 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 77,662 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 51,428 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,377 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.81 | 21,878 |
| Biggest English Cities by Century | 0 | - | 4.89 | 103,798 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 67,089 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 71,504 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,483 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.40 | 47,123 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 62,397 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.77 | 71,877 |
| Biggest Mediterranean Cities | 0 | - | 4.56 | 89,468 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 41,313 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 39,953 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 30,222 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.43 | 14,173 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 100,440 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,455 |
| Biggest City by Region | 0 | - | 4.50 | 35,246 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 55,998 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 82,263 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,376 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,676 |
| Two Largest Cities by First Two Letters | 0 | - | 4.54 | 81,498 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.51 | 22,658 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,625 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 45,275 |
| Rivers of the United States | 0 | - | 4.92 | 62,622 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 141,258 |
| Biggest European Cities by Letter | 0 | - | 4.62 | 124,139 |
| Biggest Cities in History | 0 | - | 4.50 | 86,881 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,067 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 64,701 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,345 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 81,302 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,299 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 42,792 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 35,880 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 39,441 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 67,147 |
| Biggest Urban Areas in the UK | 0 | - | 4.41 | 173,220 |
| Biggest Cities in Japan | 0 | - | 4.68 | 80,772 |
| Biggest Cities in Russia | 0 | - | 4.48 | 80,504 |
| Biggest Cities in France | 0 | - | 4.70 | 215,385 |
| Biggest Cities in Spain | 0 | - | 4.63 | 165,061 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 54,244 |
| Biggest Cities in Poland | 0 | - | 4.57 | 51,936 |
| Biggest Cities in the UK | 0 | - | 4.47 | 100,991 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,224 |
| Biggest Cities in China | 0 | - | 4.47 | 151,552 |
| Cities of Ireland | 0 | - | 4.50 | 49,078 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,012 |
| Biggest Cities in India | 0 | - | 4.70 | 65,898 |
| Biggest Cities in Italy | 0 | - | 4.70 | 232,953 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 120,168 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 113,038 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 105,214 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 118,266 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 138,305 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 122,589 |
| Hawaiian Islands | 0 | - | 4.83 | 41,127 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,307 |
| All Cities in China with Population of 1 Million | 0 | - | 4.78 | 43,377 |
| Random U.S. State Capitals on a Map | 0 | - | 4.91 | 99,757 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 145,916 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 105,195 |
| Fastest Growing U.S. Cities | 0 | - | 4.37 | 72,174 |
| Second Biggest Cities by Country | 0 | - | 4.37 | 44,873 |
| Biggest Nordic Cities | 0 | - | 4.38 | 60,898 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,658 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 161,929 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,182 |
| Biggest Cities by Latitude | 0 | - | 4.77 | 27,122 |
| U.S. Cities by Hispanic Population | 0 | - | 4.30 | 36,559 |
| Flags to Largest Cities | 0 | - | 4.54 | 36,411 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,679 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 106,353 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 90,839 |
| Biggest Cities in Washington State | 0 | - | 4.46 | 34,943 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 34,057 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 216,095 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,394,497 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,563 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 160,629 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 119,008 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.74 | 67,507 |
| Largest Cities in Alexander's Empire | 0 | - | 4.57 | 39,479 |
| Biggest Cities in the World - 2100 | 0 | - | 4.23 | 89,402 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,406 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 20,179 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,527 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 158,071 |
| Biggest Cities Starting With C | 0 | - | 4.10 | 102,202 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 84,310 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 122,394 |
| Biggest Cities Starting With T | 0 | - | 4.28 | 124,334 |
| US States by Borders in 30 Seconds | 0 | - | 4.74 | 2,594,126 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 485,612 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 163,008 |
| Countries with Megacities | 0 | - | 4.99 | 222,665 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,778 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,805 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 129,081 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,227 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 303,050 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 44,730 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 136,306 |
| Biggest Cities in California | 0 | - | 4.34 | 136,736 |
| Biggest Cities in Florida | 0 | - | 4.22 | 70,506 |
| Biggest Cities in New York State | 0 | - | 4.31 | 58,364 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 44,498 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 47,797 |
| Biggest Cities in Texas | 0 | - | 4.27 | 116,688 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 24,590 |
| Random State Capital to U.S. State | 0 | - | 4.81 | 84,076 |
| Which City in Canada? | 0 | - | 4.81 | 55,422 |
| Countries Closest to United States A-Z | 0 | - | 4.83 | 113,981 |
| Countries Closest to Alaska | 0 | - | 4.91 | 106,336 |
| Countries Closest to Maine | 0 | - | 4.83 | 63,805 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.93 | 55,901 |
| U.S. State Flags | 0 | - | 4.89 | 156,797 |
| U.S. States that Border Canada | 0 | - | 4.91 | 174,334 |
| U.S. States that Border Tennessee | 0 | - | 4.82 | 63,808 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 123,639 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 82,916 |
| Countries of Europe by Population | 0 | - | 4.98 | 167,903 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 259,605 |
| Most Populous Countries by Year | 0 | - | 4.81 | 104,514 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 117,247 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 108,609 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 89,413 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 89,087 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 111,310 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 102,374 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 108,677 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 86,088 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 90,542 |
