| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,290 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,124 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,605 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,618 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,306 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,019 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,604 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,085 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,682 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,507 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,424 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,189 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,215 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,899 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,886 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,868 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,204 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,267 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,451 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,654 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,363 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,136 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,215 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,440 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,011 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,467 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,030 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,453 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,411 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,492 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,661 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,593 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,324 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,385 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,820 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,404 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,940 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,058 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,632 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,556 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,267 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,703 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,038 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,607 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,572 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,744 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,922 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,952 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,207 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,681 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,534 |
| Largest City by Island | 0 | - | 4.87 | 70,941 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,227 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,396 |
| Biggest European Cities by Century | 0 | - | 4.98 | 132,901 |
| Megacities on a World Map | 0 | - | 4.98 | 250,238 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,126 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,711 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,745 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,660 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,584 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,143 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,465 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,835 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,144 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,917 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,870 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,000 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,987 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,722 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,329 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,959 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,255 |
| Hawaiian Islands | 0 | - | 4.83 | 42,396 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,527 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,480 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,037 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,068 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,984 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,805 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 158,060 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,465 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,841 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,022 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,441 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,952 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,683 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,923 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,919 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,855 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,488 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,063 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,857 |
| Countries with Megacities | 0 | - | 4.99 | 246,188 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,780 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,733 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,248 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,670 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,937 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,181 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,170 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,836 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,881 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,173 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,644 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,291 |
| Biggest City by Region | 0 | - | 4.50 | 35,966 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,865 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,837 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,201 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,885 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,378 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,731 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,233 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,716 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,455 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,980 |
| Biggest Cities in France | 0 | - | 4.69 | 221,803 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,668 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,599 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,400 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,540 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,061 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,511 |
| Biggest Cities in China | 0 | - | 4.53 | 156,833 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,930 |
| Biggest Cities in India | 0 | - | 4.70 | 67,283 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,261 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,646 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,189 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,366 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,603 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,602 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,018 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,458 |
| Rivers of the United States | 0 | - | 4.93 | 65,424 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,721 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,689 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,749 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,399 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,489 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,148 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,277 |
| Biggest Cities in History | 0 | - | 4.52 | 89,040 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,050 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,154 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,700 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,144 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,950 |
| The Most Populous U.S. City by Category | 0 | - | 4.35 | 22,239 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,284 |
| Biggest Cities in California | 0 | - | 4.35 | 139,148 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,734 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,364 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,176 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,062 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,554 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,559 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,031 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,381 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,862 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,339 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,787 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,027 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,890 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,094 |
| Which City in Canada? | 0 | - | 4.82 | 56,606 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 70,797 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,308 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,591 |
| U.S. State Flags | 0 | - | 4.89 | 166,681 |
| U.S. States that Border Canada | 0 | - | 4.91 | 181,877 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,061 |
| State Quiz - Florida | 0 | - | 4.47 | 61,893 |
| State Quiz - Texas | 0 | - | 4.43 | 62,451 |
| State Quiz - New York | 0 | - | 4.52 | 45,692 |
| State Quiz - California | 0 | - | 4.68 | 63,908 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,460 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,691 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,037 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,086 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,164 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,752 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,285 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,470 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,225 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,828 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,429 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,964 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,649 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,455 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,169 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,362 |
| Cities of Ireland | 0 | - | 4.51 | 50,279 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,081 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,294 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,153 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,180 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,501 |
