| Biggest Cities in the World | 0 | - | 4.90 | 695,337 |
| Biggest Cities in Asia | 0 | - | 4.94 | 97,058 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,025 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,025 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,458 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,260 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,179 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 172,197 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,230 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,279 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 65,978 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 201,841 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,573 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 121,658 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 375,299 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,184 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,747 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 307,327 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 98,985 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,333 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,719 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,042 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 108,234 |
| Biggest Cities in the United States | 0 | - | 4.93 | 842,169 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 336,917 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,642 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,140 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,815 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,145 |
| Most Populous World Capitals | 0 | - | 4.93 | 149,627 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,771 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 141,916 |
| Megacities on a World Map | 0 | - | 4.98 | 222,432 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,359 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 103,597 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 519,009 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,400 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,106 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,278 |
| 500 Biggest US Cities | 0 | - | 4.88 | 99,681 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,178 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,610 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 152,314 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,270 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 44,755 |
| Biggest Cities in Germany | 0 | - | 4.95 | 265,939 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,807 |
| Biggest Cities in Europe | 0 | - | 4.76 | 470,019 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,836 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 40,985 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,253 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,608 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,625 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 74,919 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,771 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,587 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,605 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 77,926 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,148 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,278 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,476 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,105 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,612 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 93,499 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,834 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 69,246 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,062 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,256 |
| Cities on Interstate 90 on a Map | 0 | - | 4.43 | 28,778 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,737 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,326 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,114 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,769 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,078 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,230 |
| Biggest City by Region | 0 | - | 4.50 | 33,902 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,738 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,531 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,392 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,239 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,855 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,141 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,504 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,304 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,621 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,216 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 37,015 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,339 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,454 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,750 |
| Biggest City by Island | 0 | - | 4.57 | 45,964 |
| Biggest Cities in History | 0 | - | 4.50 | 81,283 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,276 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,375 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,869 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,275 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,562 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 98,551 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,448 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 129,878 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,594 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,408 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,417 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,685 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,112 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,283 |
| Biggest Cities in France | 0 | - | 4.76 | 201,430 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,157 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,778 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,621 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,242 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,414 |
| Biggest Cities in China | 0 | - | 4.55 | 140,317 |
| Cities of Ireland | 0 | - | 4.43 | 40,053 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,874 |
| Biggest Cities in India | 0 | - | 4.71 | 62,886 |
| Biggest Cities in Italy | 0 | - | 4.66 | 219,482 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 196,456 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,642 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 110,707 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,467 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,113 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,810 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,087 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 153,882 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,275 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,345 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,072 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,582 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,540 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 20,963 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 65,716 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,116 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,412 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,896 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,262 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 204,466 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,320,792 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,530 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,686 |
| Countries with Megacities | 0 | - | 4.99 | 199,925 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,485 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,032 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,067 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,014 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,707 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,714 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,215 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,568 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 23,749 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,477 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 18,982 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,899 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,440 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,612 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,352 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,689 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,103 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 462,078 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,335 |
| Flags of the Countries that Start with C | 0 | - | 4.91 | 119,514 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 140,719 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 107,963 |
| Countries Closest to Alaska | 0 | - | 4.92 | 99,851 |
| Countries Closest to Maine | 0 | - | 4.85 | 59,524 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 38,666 |
| Rivers of the United States | 0 | - | 4.92 | 57,559 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,588 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,832 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,903 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,869 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,892 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,436 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,977 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,651 |
| Biggest Axis-Controlled Cities | 0 | - | 4.40 | 44,982 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,270 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 88,657 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 74,695 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.32 | 82,935 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 88,741 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 70,570 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,107 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,823 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,155 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,049 |
| Biggest Cities in California | 0 | - | 4.35 | 131,213 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,787 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,172 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,948 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 45,998 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,965 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,555 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 75,501 |
| Which City in Canada? | 0 | - | 4.89 | 45,631 |
| Arms Exports - United States | 0 | - | 4.65 | 48,859 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 108,085 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 100,547 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 178,334 |
| Biggest Trading Partners - Colombia | 0 | - | 4.89 | 35,911 |
