| Biggest Cities in the World | 0 | - | 4.91 | 807,170 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,217 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,339 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,568 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,116 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,220 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,976 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,892 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,697 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,667 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,976 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,399 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,113 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,726 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,856 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,321 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,580 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,805 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,261 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,804 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,883 |
| Largest City by Island | 0 | - | 4.87 | 72,587 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,506 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,896 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,266 |
| Megacities on a World Map | 0 | - | 4.98 | 257,535 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,859 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,847 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,818 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,885 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,142 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,396 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,489 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,450 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,377 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,616 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,873 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,375 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,041 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,145 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,949 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,735 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,247 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,205 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,564 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,012 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,631 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,472 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,054 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,845 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,221 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,683 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,182 |
| Biggest City by Region | 0 | - | 4.50 | 36,421 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,381 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,618 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,833 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,332 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,462 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,627 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,609 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,607 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,689 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,839 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,722 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,725 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,523 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,394 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,102 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,443 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,058 |
| Biggest Cities in History | 0 | - | 4.52 | 90,714 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,221 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,650 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,740 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,738 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,257 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,254 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,071 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,694 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,222 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,870 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,185 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,212 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,764 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,203 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,153 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,935 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,843 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,547 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,974 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,671 |
| U.S. State Flags | 0 | - | 4.89 | 173,524 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,102 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,287 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,040 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,546 |
| Countries with Megacities | 0 | - | 4.99 | 267,961 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,202 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,358 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,527 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,466 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,221 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,035 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,504 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,236 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,121 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,712 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,658 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,008 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,412 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,936 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,884 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,578 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,472 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,939 |
| Every European Country Shape | 0 | - | 4.96 | 203,280 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,733 |
| Every African Country Shape | 0 | - | 4.90 | 88,641 |
| Country Flag-Shape Picture Quiz #1 | 0 | - | 4.94 | 95,545 |
| Country Flag-Shape Picture Quiz #2 | 0 | - | 4.90 | 73,373 |
| Country Flag-Shape Picture Quiz #4 | 0 | - | 4.96 | 72,229 |
| Country Flag-Shape Picture Quiz #6 | 0 | - | 4.98 | 70,245 |
| Country Flag-Shape Picture Quiz #5 | 0 | - | 4.97 | 62,240 |
| Country Flag-Shape Picture Quiz #7 | 0 | - | 4.96 | 59,345 |
| Europe Flags Map Quiz | 0 | - | 4.97 | 159,843 |
| Fill the World Map by Country Flags | 0 | - | 4.99 | 84,438 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.67 | 23,894 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,562 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,622 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,111 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,557 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,204 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,035 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,566 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,248 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,591 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,481 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,551 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,839 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,009 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,384 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,740 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,651 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,979 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,432 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,119 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,789 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,146 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,726 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,462 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,410 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,100 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,615 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,846 |
| Biggest Cities in France | 0 | - | 4.72 | 225,664 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,388 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,362 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,359 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,989 |
| Biggest Cities in China | 0 | - | 4.53 | 160,230 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,687 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,518 |
| Biggest Cities in India | 0 | - | 4.64 | 68,131 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,766 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,694 |
| Random European Flag to Country | 0 | - | 4.90 | 184,491 |
| Random African Flag to Country | 0 | - | 4.87 | 75,744 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,688 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,639 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,980 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,599 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,881 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,911 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,068 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,273 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,031 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,600 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,675 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,883 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,916 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,959 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,977 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,724 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,747 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,965 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,049 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,029 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,621 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,290 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,578 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,934 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,879 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.89 | 99,832 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.86 | 114,764 |
| Countries that Start with A - Shape Quiz | 0 | - | 4.93 | 35,242 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.94 | 83,298 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,839 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,361 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,991 |
