| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 151,006 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 74,257 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 33,886 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 106,664 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.83 | 52,161 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.97 | 40,735 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 56,996 |
| Biggest Cities in the World | 0 | - | 4.91 | 737,649 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 321,750 |
| Biggest Cities in Asia | 0 | - | 4.94 | 102,620 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 46,579 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 46,100 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 97,105 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 79,148 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 42,116 |
| Biggest "Saint" Cities - United States | 0 | - | 4.48 | 35,376 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 38,829 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 393,161 |
| Biggest Cities in the United States | 0 | - | 4.94 | 896,712 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 348,750 |
| Biggest City by Time Zone | 0 | - | 4.85 | 60,114 |
| Biggest City in Every Country | 0 | - | 4.98 | 87,728 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 63,426 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 184,982 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 100,065 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 107,987 |
| Biggest Cities with Exceptions | 0 | - | 4.89 | 71,636 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 210,722 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 77,627 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 127,404 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.43 | 48,997 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 71,341 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 44,823 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 105,812 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.90 | 64,196 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 48,520 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 60,731 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 116,930 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 103,146 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 113,856 |
| Biggest Cities by Language | 0 | - | 4.95 | 222,236 |
| Largest City by Island | 0 | - | 4.90 | 64,589 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 67,074 |
| Most Populous World Capitals | 0 | - | 4.93 | 167,994 |
| Biggest European Cities by Century | 0 | - | 4.98 | 124,020 |
| Megacities on a World Map | 0 | - | 4.98 | 230,677 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 109,856 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 543,258 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 63,402 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 68,415 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 97,989 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 158,807 |
| U.S. Cities by Hispanic Population | 0 | - | 4.30 | 35,414 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 160,421 |
| Biggest Cities in Europe | 0 | - | 4.74 | 511,231 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 53,292 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 49,391 |
| Megacities on an Empty Map | 0 | - | 4.95 | 92,203 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 33,238 |
| Biggest Cities in Germany | 0 | - | 4.95 | 277,021 |
| Biggest Cities in Canada | 0 | - | 4.56 | 126,138 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 62,555 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 39,209 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.26 | 103,684 |
| Cities on Interstate 90 on a Map | 0 | - | 4.44 | 30,513 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 41,887 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 39,053 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 86,239 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 43,952 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.81 | 66,102 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 70,413 |
| Cities of China (With Some Help) | 0 | - | 4.89 | 29,706 |
| Biggest English Cities by Century | 0 | - | 4.89 | 102,707 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 71,093 |
| Biggest Mediterranean Cities | 0 | - | 4.56 | 88,603 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 39,070 |
| The Most Populous U.S. City by Category | 0 | - | 4.33 | 21,489 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 29,732 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 99,977 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 44,058 |
| Biggest City by Region | 0 | - | 4.49 | 34,782 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 55,336 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,961 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,334 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 58,145 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.68 | 76,762 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 80,387 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,222 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 139,792 |
| Biggest European Cities by Letter | 0 | - | 4.62 | 122,534 |
| Biggest Cities in History | 0 | - | 4.50 | 84,613 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 69,909 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 64,235 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 80,943 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 45,982 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 41,682 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 66,443 |
| Biggest Cities in the Blue Banana | 0 | - | 4.54 | 33,705 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 35,289 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,159 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 35,003 |
| Biggest Cities in Washington State | 0 | - | 4.45 | 34,226 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 33,557 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 117,739 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 111,353 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 102,836 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 116,103 |
| Biggest Cities Starting With M | 0 | - | 4.49 | 135,316 |
| Biggest Cities Starting With P | 0 | - | 4.48 | 120,334 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 61,879 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 39,602 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.93 | 60,351 |
| Biggest Urban Areas in the UK | 0 | - | 4.41 | 171,727 |
| Biggest Cities in Japan | 0 | - | 4.68 | 79,331 |
| Biggest Cities in Russia | 0 | - | 4.48 | 79,494 |
| Biggest Cities in France | 0 | - | 4.70 | 210,400 |
| Biggest Cities in Spain | 0 | - | 4.55 | 161,751 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 53,123 |
| Biggest Cities in Poland | 0 | - | 4.57 | 50,803 |
| Biggest Cities in the UK | 0 | - | 4.47 | 98,824 |
| Biggest Cities in China | 0 | - | 4.47 | 147,820 |
| Cities of Ireland | 0 | - | 4.50 | 48,210 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 45,272 |
| Biggest Cities in India | 0 | - | 4.70 | 64,966 |
| Biggest Cities in Italy | 0 | - | 4.70 | 228,893 |
| US States Quiz | 0 | - | 5.00 | 15,654,995 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 144,962 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 116,010 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 71,664 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,856 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,457 |
| Biggest City by Region #2 | 0 | - | 4.43 | 23,881 |
| Biggest Cities by Latitude | 0 | - | 4.77 | 26,877 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 103,593 |
| Biggest Nordic Cities | 0 | - | 4.38 | 60,511 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 159,099 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.74 | 43,056 |
| Flags to Largest Cities | 0 | - | 4.54 | 35,152 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.50 | 22,151 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 50,625 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 36,652 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.74 | 72,097 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,442 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.42 | 103,076 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.41 | 87,577 |
| Biggest Cities in California | 0 | - | 4.34 | 134,951 |
| Biggest Cities in Florida | 0 | - | 4.22 | 69,676 |
| Biggest Cities in New York State | 0 | - | 4.31 | 57,610 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 44,029 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 47,278 |
| Biggest Cities in Texas | 0 | - | 4.27 | 115,316 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 24,276 |
| Biggest World Cities A-Z | 0 | - | 4.56 | 212,335 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,369,577 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 362,021 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 155,390 |
| Countries with Megacities | 0 | - | 4.99 | 214,116 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,229 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 104,889 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 105,412 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 71,618 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 266,204 |
| Largest Cities in Alexander's Empire | 0 | - | 4.57 | 39,225 |
| Biggest Cities in the World - 2100 | 0 | - | 4.25 | 87,153 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,132 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.81 | 20,214 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,745 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,287 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 155,237 |
| Biggest Cities Starting With C | 0 | - | 4.09 | 100,692 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 82,584 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 120,446 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 121,827 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,600,905 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 66,387 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 139,099 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 300,757 |
| 10 Longest Rivers in the United States | 0 | - | 4.83 | 36,721 |
| US States with an Empty Map | 0 | - | 5.00 | 585,542 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 86,138 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 41,003 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 122,649 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.78 | 21,026 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 121,561 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 80,842 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,429 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 114,719 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 106,986 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 86,991 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,149 |
| Largest World Cities With Four Letters | 0 | - | 4.35 | 44,321 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.78 | 66,820 |
| Biggest Cities by Trait #2 | 0 | - | 4.40 | 14,735 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.43 | 13,904 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 133,712 |
| Countries Closest to Alaska | 0 | - | 4.91 | 103,965 |
| Countries Closest to Maine | 0 | - | 4.85 | 62,330 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 42,897 |
| Rivers of the United States | 0 | - | 4.92 | 60,956 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 195,103 |
