| Biggest Cities in the World | 0 | - | 4.90 | 703,951 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,882 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 71,011 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.87 | 101,347 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,903 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,378 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,516 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 43,152 |
| Biggest City by Time Zone | 0 | - | 4.85 | 56,112 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,627 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,622 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,453 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,863 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,967 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,523 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 378,815 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 67,067 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 43,041 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,980 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 47,034 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,863 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 109,802 |
| Biggest Cities in the United States | 0 | - | 4.93 | 850,294 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 338,968 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,525 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,569 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,863 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 310,328 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,527 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 523,791 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,295 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,612 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,409 |
| Most Populous World Capitals | 0 | - | 4.94 | 162,575 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,651 |
| Megacities on a World Map | 0 | - | 4.98 | 223,932 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,814 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 105,307 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,976 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,833 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 92,277 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,830 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,864 |
| Biggest Cities in Europe | 0 | - | 4.75 | 490,471 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,710 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,768 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,677 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,914 |
| Biggest Cities in Germany | 0 | - | 4.95 | 268,409 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 61,152 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,555 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 68,690 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,658 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,890 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,630 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 63,306 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,892 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,439 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,551 |
| Largest Nordic Cities on a Map | 0 | - | 4.82 | 30,927 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,717 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,677 |
| Biggest Mediterranean Cities | 0 | - | 4.58 | 87,325 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,677 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,327 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,615 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 43,407 |
| Biggest City by Region | 0 | - | 4.50 | 34,082 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 54,093 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,697 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 78,120 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,466 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 140,003 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,706 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 137,583 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,429 |
| Biggest City by Island | 0 | - | 4.57 | 46,145 |
| Biggest Cities in History | 0 | - | 4.50 | 81,968 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,603 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,386 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,671 |
| Biggest World Cities in 1850 | 0 | - | 4.64 | 65,213 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,731 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 114,234 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 108,499 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 99,438 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 112,443 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 131,140 |
| Biggest Cities Starting With P | 0 | - | 4.48 | 116,506 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,701 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,275 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,158 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,408 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,455 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 79,001 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,245 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 62,121 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.47 | 46,923 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 37,274 |
| Biggest Cities in Japan | 0 | - | 4.66 | 76,756 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,701 |
| Biggest Cities in France | 0 | - | 4.72 | 203,524 |
| Biggest Cities in Spain | 0 | - | 4.55 | 156,529 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 51,265 |
| Biggest Cities in Poland | 0 | - | 4.57 | 49,148 |
| Biggest Cities in the UK | 0 | - | 4.46 | 95,315 |
| Biggest Cities in China | 0 | - | 4.55 | 142,023 |
| Cities of Ireland | 0 | - | 4.49 | 46,585 |
| Biggest Cities in Canada | 0 | - | 4.66 | 122,580 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 44,171 |
| Biggest Cities in India | 0 | - | 4.71 | 63,377 |
| Biggest Cities in Italy | 0 | - | 4.70 | 221,751 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,330,326 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,697 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,287 |
| Countries with Megacities | 0 | - | 4.99 | 202,177 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,650 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,102 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,450 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,051 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,487 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,785 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 154,958 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,911 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,286 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,686 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 83,295 |
| Flags to Largest Cities | 0 | - | 4.55 | 33,075 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 49,253 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 35,033 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 67,057 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 41,886 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,984 |
| Biggest World Cities A-Z | 0 | - | 4.58 | 206,303 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 150,626 |
| Biggest Cities Starting With C | 0 | - | 4.08 | 98,189 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 80,102 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 116,755 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 118,034 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.79 | 19,712 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,951 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,770 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.49 | 21,237 |
| The Most Populous U.S. City by Category | 0 | - | 4.31 | 20,974 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 23,019 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,573 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,227 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,564 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,583 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,705 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,335 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,402 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 175,367 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 152,130 |
| Countries by Population Range - Tile Select | 0 | - | 4.84 | 51,422 |
| Largest World Cities With Four Letters | 0 | - | 4.38 | 43,616 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,972 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 95,536 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,373 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,686 |
| Cities on Interstate 90 on a Map | 0 | - | 4.44 | 29,336 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 169,148 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,908 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,157 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,821 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 53,009 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,460 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,861 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 89,415 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,686 |
| Most Populous Countries by Year | 0 | - | 4.81 | 95,965 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 67,728 |
| Demographics Multiple Choice | 0 | - | 4.66 | 40,235 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,429 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 98,541 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 84,985 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 95,193 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 73,112 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 87,049 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,605 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,661 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 29,265 |
| Cities in Squares on a Map - North America | 0 | - | 4.32 | 19,769 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,606 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 89,620 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 75,548 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.30 | 83,976 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 89,610 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 71,303 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,917 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 61,186 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,490 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,471 |
| Biggest Cities in California | 0 | - | 4.35 | 132,138 |
| Biggest Cities in Florida | 0 | - | 4.20 | 68,239 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,544 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 43,209 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,324 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,625 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,735 |
