| Biggest Cities in the World | 0 | - | 4.91 | 802,647 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,427 |
| Biggest Cities in the United States | 0 | - | 4.94 | 983,033 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,192 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,535 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,416 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,462 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,029 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,007 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,403 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,963 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,587 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,359 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,441 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,968 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,083 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,571 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,350 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,265 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,249 |
| Largest City by Island | 0 | - | 4.87 | 72,190 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,271 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,379 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,914 |
| Megacities on a World Map | 0 | - | 4.98 | 255,853 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,596 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,359 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,549 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,918 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,721 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,592 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,282 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,424 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,896 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,304 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,635 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,675 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,178 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,834 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,119 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,316 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,961 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,725 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,709 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,904 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 83,664 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,192 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,725 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,653 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,888 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,868 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,595 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,083 |
| Biggest City by Region | 0 | - | 4.50 | 36,313 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,230 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,375 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,836 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,260 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,398 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,420 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,134 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,493 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,410 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,686 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,823 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,358 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,340 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,484 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,735 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,678 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,382 |
| Biggest Cities in History | 0 | - | 4.52 | 90,393 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,574 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,527 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,594 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,638 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,881 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,693 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,294 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,744 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,423 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,613 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,638 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,740 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,116 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,108 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,873 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,585 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,643 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,407 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,780 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,428 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,562 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,311 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,476 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,293 |
| Countries with Megacities | 0 | - | 4.99 | 265,486 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,112 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,675 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,360 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,748 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,984 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,882 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,024 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,921 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,028 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,349 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,354 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,963 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,653 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,114 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,521 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,307 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,059 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,554 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,875 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,531 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,046 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,251 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,086 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,935 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,471 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,081 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,201 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,059 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,496 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,344 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,678 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,889 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,349 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,301 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,740 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,237 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,954 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,664 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,078 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,399 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,265 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,535 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,326 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,623 |
| Biggest Cities in France | 0 | - | 4.70 | 224,731 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,710 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,151 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,119 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,586 |
| Biggest Cities in China | 0 | - | 4.53 | 159,372 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,226 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,360 |
| Biggest Cities in India | 0 | - | 4.64 | 67,927 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,799 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,441 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,251,588 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,270 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,026 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,047 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,769 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,926 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,334 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,471 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,612 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,047 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,903 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,527 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,350 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,581 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,684 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,744 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,829 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,595 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,576 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,802 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,441 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,627 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,364 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,028 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,393 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,700 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,530 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,350 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,612 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,732 |
| Every Country Shape | 0 | - | 5.00 | 468,763 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.89 | 99,556 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.86 | 114,403 |
| Countries that Start with A - Shape Quiz | 0 | - | 4.93 | 34,844 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.94 | 83,035 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,357 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,550 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,311 |
| Flags of Africa Quiz | 0 | - | 5.00 | 474,726 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,944 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,329 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,651 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,451 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,966 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,359 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,424 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,891 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,666 |
