| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,681,182 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,584 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,932 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,120 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,893 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,697 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,746 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,487 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,782 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,692 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,237 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,962 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,852 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,884 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,581 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,338 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,047 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,997 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,952 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,673 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,500 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 113,053 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,946 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,932 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,013 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,987 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,215 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,502 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,099 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,657 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,889 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,622 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,242 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,507 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,076 |
| US States with an Empty Map | 0 | - | 5.00 | 620,620 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,341 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,544 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,027 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,201 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,888 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,278 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,746 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,281 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,884 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,817 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,781 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,943 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,334 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,084 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,408 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,942 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,973 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,089 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,016 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,189 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,650 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,215 |
| Largest City by Island | 0 | - | 4.87 | 71,298 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,536 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,839 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,794 |
| Megacities on a World Map | 0 | - | 4.98 | 251,932 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,970 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,230 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,338 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,875 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,570 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,017 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,561 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,237 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,538 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,859 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,331 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,115 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,957 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,386 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,652 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,301 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,050 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,291 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,044 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,360 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,814 |
| US States Quiz | 0 | - | 5.00 | 16,753,778 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,283 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,716 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 68,652 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,231 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,201 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,000 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,002 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,126 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,201 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,963 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,524,334 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,137 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,396 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,053 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,983 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 36,024 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,953 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,631 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,089 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,830 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,393 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,888 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,226 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,370 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,482 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,354 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,368 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,148 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,895 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,658 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,312 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,703 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,900 |
| US States by Borders in 30 Seconds | 0 | - | 4.69 | 2,669,605 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,384,137 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,130 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,946 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,343 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,983 |
| Countries with Megacities | 0 | - | 4.99 | 248,369 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,875 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,396 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,267 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,329 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,121 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,962 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,804 |
| Biggest City by Region | 0 | - | 4.50 | 36,044 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,975 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,080 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,265 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,027 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,607 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 36,881 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,300 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,976 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,690 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,135 |
| Biggest Cities in France | 0 | - | 4.69 | 222,878 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,273 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,749 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,574 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,391 |
| Biggest Cities in China | 0 | - | 4.52 | 157,494 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,034 |
| Biggest Cities in India | 0 | - | 4.70 | 67,452 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,006 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,998 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,575 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,182 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.48 | 26,021 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,657 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,659 |
| Rivers of the United States | 0 | - | 4.93 | 65,718 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,191 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,649 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,193 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,666 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,993 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,549 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,674 |
| Biggest Cities in History | 0 | - | 4.52 | 89,291 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,190 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,250 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,762 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,659 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,188 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,276 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,147 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,853 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,062 |
| Biggest Cities in California | 0 | - | 4.35 | 139,430 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,901 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,482 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,257 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,154 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,627 |
| Biggest Cities in Texas | 0 | - | 4.28 | 119,032 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,108 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,750 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,181 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,841 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,173 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,704 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,214 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,295 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,549 |
| US State Capitals - One Minute Sprint | 0 | - | 4.06 | 182,950 |
| US States and State Capitals | 0 | - | 4.99 | 159,658 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,104 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,826 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,715 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,368 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,496 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,440 |
