| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,491 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,452 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,471 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,685 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,965 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,319 |
| US States and State Capitals | 0 | - | 4.99 | 163,154 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,377 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,236 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,172 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,261 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,316 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,133 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,255 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,655 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,004 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,586 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,267 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,104 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,455 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,629 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,411 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,691,708 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,166 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,004 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,188 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,903 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,646 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,614 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,264 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,516 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,033 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,699 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,389 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,393 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,166 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,065 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,905 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,221 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,747 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,816 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,853 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,192 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,574 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,391 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,831 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,944 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,834 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,925 |
| Largest City by Island | 0 | - | 4.87 | 72,002 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,108 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,120 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,681 |
| Megacities on a World Map | 0 | - | 4.98 | 255,093 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,068 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,013 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,458 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,101 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,030 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,875 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,435 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,012 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,223 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,391 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,175 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,247 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,019 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,616 |
| Biggest Cities in California | 0 | - | 4.35 | 139,992 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,174 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,725 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,424 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,595 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,286 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,693 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,813 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,398 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,206 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,440 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,424 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,154 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,889 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,599 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,610 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,231 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,614 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,104 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,483 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,974 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,602 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,548 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,341 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,661 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,187 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,186 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,788 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,371 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,595 |
| Biggest Cities in New Jersey | 0 | - | 4.13 | 28,804 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,194 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,776 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,913 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,968 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,004 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,631 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,211 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,442 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,903 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,062 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,391 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,788 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,341 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,341 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,733 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,497 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,016 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,405 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,652 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,985 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,702 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,866 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,364 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,768 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,847 |
| Countries with Megacities | 0 | - | 4.99 | 264,267 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,085 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,069 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,623 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,514 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,403 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,889 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,674 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,468 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,178 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,687 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,551 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,026 |
| Biggest City by Region | 0 | - | 4.50 | 36,265 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,178 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,215 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,370 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,336 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,863 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,222 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,162 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,444 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,681 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,403 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,401 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,185 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,479 |
| Biggest Cities in France | 0 | - | 4.70 | 224,279 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,342 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,051 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,980 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,372 |
| Biggest Cities in China | 0 | - | 4.53 | 158,887 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,991 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,273 |
| Biggest Cities in India | 0 | - | 4.64 | 67,810 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,343 |
| Which City in Canada? | 0 | - | 4.83 | 57,119 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,285 |
| U.S. State Flags | 0 | - | 4.88 | 171,032 |
| Hawaiian Islands | 0 | - | 4.83 | 42,754 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,357 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,248 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,799 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,676 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,635 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,070 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,273 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,439 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,949 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 163,581 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,605 |
| Biggest Cities in History | 0 | - | 4.52 | 90,253 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 77,860 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,972 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,461 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,651 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,614 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,513 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,461 |
| Cities of Ireland | 0 | - | 4.51 | 50,713 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,196 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,930 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,473 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,733 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,523 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,112 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,527 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,224 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,150 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,433 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,275 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,867 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,307 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,610 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,367 |
