| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,341 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,510 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,779 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,859 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,576 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,577 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,389 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,280 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,944 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,486 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,594 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,336 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,716 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,765 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,107 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,952 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,218 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,557 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,611 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,570 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,670 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,862 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,660 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,095 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,877 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,213 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,792 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,751 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,608 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 99,901 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,447 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,982 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,879 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,382 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,567 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,608 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,918 |
| Largest City by Island | 0 | - | 4.87 | 71,094 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,421 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,613 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,132 |
| Megacities on a World Map | 0 | - | 4.98 | 251,148 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,290 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,833 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,918 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,725 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,634 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,181 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,885 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,899 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,178 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,226 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,776 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,672 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,507 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,269 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,880 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,946 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,459 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,101 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,377 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,495 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,577 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,446 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,988 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,963 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,151 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,085 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,609 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,561 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,138 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,296 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,632 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,020 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,166 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,139 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,048 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,978 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,962 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,919 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,728 |
| Biggest City by Region | 0 | - | 4.50 | 36,006 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,916 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,037 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,029 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,231 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,937 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,266 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,951 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,828 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,444 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,253 |
| Biggest Cities in History | 0 | - | 4.52 | 89,164 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,136 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,322 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,864 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,204 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,044 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,208 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,025 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,267 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,575 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,550 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,007 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,650 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,953 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,248 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,037 |
| US States Quiz | 0 | - | 5.00 | 16,713,136 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,623 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,941 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,932 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,734 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,486 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,807 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,836 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,572 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,046 |
| Biggest Cities in France | 0 | - | 4.69 | 222,494 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,955 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,678 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,752 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,484 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,985 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,220 |
| Biggest Cities in China | 0 | - | 4.53 | 157,116 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,366 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,985 |
| Biggest Cities in India | 0 | - | 4.70 | 67,361 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,611 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,716 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,116 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,579 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,871 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,455 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,980 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,676 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,471 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,243 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,442 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,600 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,391 |
| Cities of Ireland | 0 | - | 4.51 | 50,354 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,103 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,947 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,900 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,678,407 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,275 |
| US States with an Empty Map | 0 | - | 5.00 | 619,251 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,828 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,839 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,347 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,732 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,859 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,232 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,763 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,832 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,730 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,839 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,327 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,439 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,850 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,450 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,834 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,625 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,661 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,821 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,491 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,128 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,481 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,824 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,810 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,656 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,027 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,411 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,521 |
| Countries with Megacities | 0 | - | 4.99 | 247,368 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,339 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,132 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,765 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,048 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,728 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,560 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,887 |
| Cities in European Economic Areas on a Map | 0 | - | 4.69 | 17,021 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,561 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,799 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,524 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,368 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,489 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,637 |
| Rivers of the United States | 0 | - | 4.93 | 65,566 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,861 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,926 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,724 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,144 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,570 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,165 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,944 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,140 |
