| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,415 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,216 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,681 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,719 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,431 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,155 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,874 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,237 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,742 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,542 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,460 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,226 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,269 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,918 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,914 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,902 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,959 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,392 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,527 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,738 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,421 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,224 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,472 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,494 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,099 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,683 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,077 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,595 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,585 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,772 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,799 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,904 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,440 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,482 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,966 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,525 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,021 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,129 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,709 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,635 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,471 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,779 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,095 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,633 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,021 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,793 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,948 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,145 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,356 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,799 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,953 |
| Largest City by Island | 0 | - | 4.87 | 71,007 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,354 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,492 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,283 |
| Megacities on a World Map | 0 | - | 4.98 | 250,822 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,205 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,767 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,826 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,681 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,598 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,160 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,631 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,857 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,246 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,932 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,963 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,034 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,100 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,961 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,461 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,968 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,271 |
| Hawaiian Islands | 0 | - | 4.83 | 42,421 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,578 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,517 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,095 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,091 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,016 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,874 |
| US States and State Capitals | 0 | - | 4.99 | 158,358 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,549 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,904 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,473 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,466 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,979 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,715 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,931 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,930 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,878 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,460 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,467 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,996 |
| Countries with Megacities | 0 | - | 4.99 | 246,518 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,913 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,797 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,369 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,754 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,973 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,209 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,602 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,881 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,890 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,210 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,677 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,306 |
| Biggest City by Region | 0 | - | 4.50 | 35,989 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,890 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,847 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,008 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,215 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,902 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,404 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,754 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,246 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,765 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,500 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,006 |
| Biggest Cities in France | 0 | - | 4.69 | 221,955 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,760 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,630 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,428 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,551 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,115 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,531 |
| Biggest Cities in China | 0 | - | 4.53 | 156,926 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,940 |
| Biggest Cities in India | 0 | - | 4.70 | 67,314 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,373 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,727 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,274 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,416 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,630 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,617 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,032 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,527 |
| Rivers of the United States | 0 | - | 4.93 | 65,480 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,778 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,826 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,823 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,441 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,542 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,206 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,341 |
| Biggest Cities in History | 0 | - | 4.52 | 89,093 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,106 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,173 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,714 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,181 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,988 |
| The Most Populous U.S. City by Category | 0 | - | 4.35 | 22,254 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,320 |
| Biggest Cities in California | 0 | - | 4.35 | 139,187 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,756 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,400 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,188 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,070 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,577 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,589 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,045 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,462 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,932 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,563 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,879 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,112 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,961 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,159 |
| Which City in Canada? | 0 | - | 4.82 | 56,642 |
| Countries that Visit Florida the Most | 0 | - | 4.72 | 71,039 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,376 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,632 |
| U.S. State Flags | 0 | - | 4.89 | 166,946 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,334 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,078 |
| State Quiz - Florida | 0 | - | 4.47 | 61,923 |
| State Quiz - Texas | 0 | - | 4.43 | 62,480 |
| State Quiz - New York | 0 | - | 4.52 | 45,725 |
| State Quiz - California | 0 | - | 4.68 | 63,945 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,483 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,931 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,144 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,112 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,260 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,857 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,357 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,537 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,255 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,851 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,441 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,972 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,663 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,462 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,196 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,394 |
| Cities of Ireland | 0 | - | 4.51 | 50,318 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,089 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,401 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,238 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,219 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,562 |
