| Biggest Cities in the World | 0 | - | 4.92 | 803,625 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,838 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,891 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,334 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,393 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,705 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,611 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,800 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,199 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,026 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,546 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,326 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,076 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,452 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,815 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,721 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,467 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,151 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,531 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,058 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,188 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,858 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,486 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,497 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,371 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,401 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,930 |
| Largest City by Island | 0 | - | 4.87 | 72,273 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,317 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,498 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,988 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,840 |
| Megacities on a World Map | 0 | - | 4.98 | 256,207 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,815 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,045 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,851 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,657 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,467 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,011 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,278 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,855 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,744 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,778 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,417 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,422 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,039 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,226 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,702 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,723 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,820 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,311 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,009 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,977 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,434 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,380 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,684 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,875 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,237 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,894 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,121 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,617 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,006 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,690 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,432 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,718 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,915 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,954 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,611 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,104 |
| Biggest City by Region | 0 | - | 4.50 | 36,339 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,268 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,469 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,521 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,542 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,784 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,053 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,633 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,118 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,956 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,491 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,699 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,240 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,032 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,550 |
| Biggest Cities in History | 0 | - | 4.52 | 90,455 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,729 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,550 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,631 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,982 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,037 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,831 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,412 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,882 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,547 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,274 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,988 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,686 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,463 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,311 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,317 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,592 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,384 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,678 |
| Biggest Cities in France | 0 | - | 4.70 | 224,936 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,864 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,190 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,182 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,663 |
| Biggest Cities in China | 0 | - | 4.53 | 159,532 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,314 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,394 |
| Biggest Cities in India | 0 | - | 4.64 | 67,973 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,008 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,487 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,734 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,755 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,407 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,047 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,135 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,664 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,121 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,112 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,891 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 31,804 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,488 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,988 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,385 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,453 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,826 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,900 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,709 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,346 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,505 |
| Cities of Ireland | 0 | - | 4.51 | 50,829 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,425 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,410 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,387 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,194 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,803 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,496 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,802 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,487 |
| Countries with Megacities | 0 | - | 4.99 | 265,949 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,281 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,766 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,535 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,883 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,020 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,046 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,538 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,051 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,890 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,330 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,135 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,975 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,595 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,693 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,403 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,191 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,672 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,871 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,789 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,384 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,089 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,694 |
| Flags of the Countries that Start with C | 0 | - | 4.88 | 130,518 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 154,422 |
| Flags of the Countries that Start with B | 0 | - | 4.97 | 43,355 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 127,734 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,282 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,139 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,642 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,451 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,743 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,000 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,414 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,927 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,447 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,131 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,418 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,643 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,735 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,786 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,854 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,631 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,611 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,832 |
| Biggest Cities in California | 0 | - | 4.35 | 140,234 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,307 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,844 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,497 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,362 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,781 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,908 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,576 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,244 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.89 | 99,616 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.86 | 114,478 |
