| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,546 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,312 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,756 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,812 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,539 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,310 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,148 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,397 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,767 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,578 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,493 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,259 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,312 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,939 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,936 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,923 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,663 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,536 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,629 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,830 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,479 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,337 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,740 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,555 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,023 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,885 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,136 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,679 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,731 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,020 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,899 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,116 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,518 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,548 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,090 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,618 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,072 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,196 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,768 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,705 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,560 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,849 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,975 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,660 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,396 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,852 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,976 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,356 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,536 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,880 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,261 |
| Largest City by Island | 0 | - | 4.87 | 71,067 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,401 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,575 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,876 |
| Megacities on a World Map | 0 | - | 4.98 | 251,051 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,272 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,815 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,893 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,713 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,628 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,173 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,814 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,887 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,358 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,950 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,078 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,074 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,945 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,186 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,892 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,071 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,537 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,982 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,290 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,619 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,545 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,128 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,125 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,035 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,944 |
| US States and State Capitals | 0 | - | 4.99 | 158,637 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,672 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,057 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,276 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,488 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,015 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,743 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,946 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,206 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,080 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,585 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,051 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,425 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,744 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,386 |
| Countries with Megacities | 0 | - | 4.99 | 247,151 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,236 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,050 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,664 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,971 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,014 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,225 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,066 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,938 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,911 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,240 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,713 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,318 |
| Biggest City by Region | 0 | - | 4.50 | 36,001 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,907 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,858 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,023 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,227 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,930 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,460 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,792 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,262 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,814 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,539 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,033 |
| Biggest Cities in France | 0 | - | 4.69 | 222,298 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,879 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,664 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,466 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,559 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,178 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,562 |
| Biggest Cities in China | 0 | - | 4.53 | 157,057 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,970 |
| Biggest Cities in India | 0 | - | 4.70 | 67,344 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,529 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,798 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,343 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,465 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,644 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,642 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,053 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,615 |
| Rivers of the United States | 0 | - | 4.93 | 65,539 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,872 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,990 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,923 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,512 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,643 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,313 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,413 |
| Biggest Cities in History | 0 | - | 4.52 | 89,145 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,125 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,190 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,726 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,204 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,009 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,263 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,353 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,120 |
| Biggest Cities in California | 0 | - | 4.35 | 139,223 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,794 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,421 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,012 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,581 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,720 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,764 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,890 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,404 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,294 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,772 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,637 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,844 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,529 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,986 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,623 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,930 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,208 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,012 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,220 |
| Which City in Canada? | 0 | - | 4.82 | 56,700 |
| Countries that Visit Florida the Most | 0 | - | 4.72 | 71,203 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,440 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,671 |
| U.S. State Flags | 0 | - | 4.89 | 167,207 |
| Hawaiian Islands | 0 | - | 4.83 | 42,437 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,539 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,098 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,170 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,282 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,168 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,380 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,983 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,438 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,629 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,324 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,864 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,454 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,978 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,672 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,466 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,226 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,434 |
| Cities of Ireland | 0 | - | 4.51 | 50,342 |
