| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,077 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,191 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,258 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,631 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,564 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,956 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,134 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,180 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,557 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,120 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,708 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,917 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,841 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,734 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,963 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,423 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,492 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,998 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,571 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,644 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,044 |
| Biggest Cities in the United States | 0 | - | 4.94 | 976,215 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,655 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,587 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,063 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,361 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,003 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,084 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,500 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,274 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,573 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,737 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,832 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 62,885 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,436 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,944 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,102 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,250 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,084 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,108 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,103 |
| Largest City by Island | 0 | - | 4.87 | 71,725 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,821 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,737 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,293 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,039 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,983 |
| Megacities on a World Map | 0 | - | 4.98 | 253,619 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,744 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,241 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,759 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,310 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,079 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,154 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,129 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,042 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,948 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,660 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,377 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,171 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,155 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,268 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,510 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,186 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,818 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,436 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,854 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,918 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,783 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,348 |
| Biggest Cities in California | 0 | - | 4.35 | 139,738 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,047 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,605 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,364 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,223 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,727 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,243 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,162 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,763 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,488 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,409 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,253 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,894 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,035 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,064 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,126 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,036 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,694 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,434 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,053 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,931 |
| Biggest City by Region | 0 | - | 4.50 | 36,133 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,062 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,262 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,374 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,160 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,334 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,184 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,570 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,378 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,431 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,572 |
| Biggest Cities in History | 0 | - | 4.52 | 90,037 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,565 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,455 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,958 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,367 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 116,467 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,411 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,222 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,970 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,329 |
| Biggest Cities in France | 0 | - | 4.70 | 223,679 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,930 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,918 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,814 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,103 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,844 |
| Biggest Cities in China | 0 | - | 4.52 | 158,307 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,714 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,177 |
| Biggest Cities in India | 0 | - | 4.64 | 67,687 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,822 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,251 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,140 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,703 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,860 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,600 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,896 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,964 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,552 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,164 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,398 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,871 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 26,995 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,151 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,480 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,239 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,554 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,154 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,918 |
| Hawaiian Islands | 0 | - | 4.83 | 42,662 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,804 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,622 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,615 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,902 |
| US States and State Capitals | 0 | - | 4.99 | 161,506 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,254 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,671 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,011 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,561 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,040 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,408 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,761 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,541 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,549 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,277 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,360 |
| Cities of Ireland | 0 | - | 4.51 | 50,579 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,179 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,922 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,031 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,797 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,886 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,733 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,837 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,719 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,963 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,776 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,932 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,879 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,819 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,145 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,955 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,913 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,874 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,541 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,180 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,995 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,401 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,092 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 505,732 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,602 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,118 |
| Countries with Megacities | 0 | - | 4.99 | 261,261 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,980 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,045 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,254 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,064 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 56,050 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,993 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,046 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,150 |
| Which City in Canada? | 0 | - | 4.82 | 56,966 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,028 |
| U.S. State Flags | 0 | - | 4.89 | 169,918 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,281 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,767 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,581 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,306 |
