| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,634 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,729 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,960 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,156 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,964 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,783 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,965 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,221 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,305 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,020 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,693 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,521 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,075 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,264 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,032 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,323 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,436 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,932 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,096 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,863 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,037 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,059 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,007 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,366 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,271 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,445 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,968 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,013 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,144 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 100,267 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,848 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,623 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,113 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,693 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,021 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,322 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,996 |
| Largest City by Island | 0 | - | 4.87 | 71,336 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,558 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,877 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,857 |
| Megacities on a World Map | 0 | - | 4.98 | 252,074 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,529 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,994 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,285 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,805 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,698 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,251 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,410 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,975 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,405 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,608 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,872 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,764 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,610 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,354 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,120 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,014 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,134 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,350 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,368 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,561 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,798 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,956 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,050 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,651 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,026 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,650 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,271 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 113,136 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,668 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,251 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,373 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,737 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,117 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,706 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,218 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,138 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,239 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,149 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,971 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,815 |
| Biggest City by Region | 0 | - | 4.50 | 36,052 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,982 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,171 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,089 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,272 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,047 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,309 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,985 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,034 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,709 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,370 |
| Biggest Cities in History | 0 | - | 4.52 | 89,319 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,199 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,379 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,900 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,265 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,211 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,285 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,172 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,297 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,679 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,784 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,210 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,879 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,198 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,731 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,260 |
| US States Quiz | 0 | - | 5.00 | 16,763,159 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,436 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,015 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,024 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,763 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,626 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,889 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,993 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,717 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,158 |
| Biggest Cities in France | 0 | - | 4.69 | 222,941 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,324 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,767 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,872 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,594 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,081 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,419 |
| Biggest Cities in China | 0 | - | 4.53 | 157,605 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,042 |
| Biggest Cities in India | 0 | - | 4.70 | 67,475 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,088 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,186 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,445 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,329 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,926 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,497 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,998 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,712 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,503 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,373 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,491 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,663 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,440 |
| Cities of Ireland | 0 | - | 4.51 | 50,459 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,131 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 36,031 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,966 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,681,835 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,402 |
| US States with an Empty Map | 0 | - | 5.00 | 620,893 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,934 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,596 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,469 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,996 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,891 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,283 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,811 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,017 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,774 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,873 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,526 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,706 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,870 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,143 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,132 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,951 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,799 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,038 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,715 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,351 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,747 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,912 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,201 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,992 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,389 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,478 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,093 |
| Countries with Megacities | 0 | - | 4.99 | 248,584 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,968 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,452 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,343 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,400 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,920 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,642 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,934 |
| Biggest Cities Ever Under Danish Rule | 0 | - | 4.49 | 16,149 |
| Cities in European Economic Areas on a Map | 0 | - | 4.69 | 17,219 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,584 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,918 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,994 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,707 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,697 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,907 |
| Rivers of the United States | 0 | - | 4.93 | 65,752 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,423 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,154 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,005 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,436 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,667 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,363 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,222 |
