| Cities of Ireland | 0 | - | 4.51 | 50,771 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,281 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,546 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,355 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,308 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,677 |
| Biggest Cities in the World | 0 | - | 4.91 | 802,300 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,535 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,889 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,268 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,272 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,757 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,328 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,407 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,043 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,248 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,284 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,895 |
| Biggest Cities in the United States | 0 | - | 4.94 | 982,455 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,085 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,490 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,357 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,345 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,971 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 147,236 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,357 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,927 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,530 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,316 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,407 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,929 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,048 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,486 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,682 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,669 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,862 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,113 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 83,522 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,152 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,664 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,623 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,223 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,181 |
| Largest City by Island | 0 | - | 4.87 | 72,160 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,249 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,341 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,883 |
| Megacities on a World Map | 0 | - | 4.98 | 255,739 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,759 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,579 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,311 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,098 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,488 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,507 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,552 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,870 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,676 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,713 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,860 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,332 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,719 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,888 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,716 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,525 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,151 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,807 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,064 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,002 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,632 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,394 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,297 |
| Biggest Cities in France | 0 | - | 4.70 | 224,652 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,656 |
| Biggest Cities in China | 0 | - | 4.53 | 159,296 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,712 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,866 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,833 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,589 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,069 |
| Biggest City by Region | 0 | - | 4.50 | 36,306 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,224 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,249 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,391 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,408 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,486 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,894 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 165,291 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,850 |
| Biggest Cities in History | 0 | - | 4.52 | 90,371 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,515 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,226 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,041 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,943 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,066 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,653 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,518 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,080 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,919 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,458 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,380 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,872 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,250 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,581 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,537 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,283 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,304 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,602 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,134 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,095 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,193 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,343 |
| Biggest Cities in India | 0 | - | 4.64 | 67,909 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,618 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,860 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,668 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,271 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,718 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,390 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,350 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,407 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,883 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,268 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,447 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,489 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,960 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,113 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,644 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,101 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,976 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,869 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,581 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,433 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,763 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,598 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,660 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,222 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,326 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,334 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,320 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,158 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,590 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,834 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,379 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,563 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,573 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,765 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,508 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,023 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,277 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,094 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,956 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,073 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,502 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,282 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,026 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,527 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,761 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,194 |
| Countries with Megacities | 0 | - | 4.99 | 265,285 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,016 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,631 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,273 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,706 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,254 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,071 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 17,880 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,679 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,114 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,419 |
| Biggest Cities in California | 0 | - | 4.35 | 140,134 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,248 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,793 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,462 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,320 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,732 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,867 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,484 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,223 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,166 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,036 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,897 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,427 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,001 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,298 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,657 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,859 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,750 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,873 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,282 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,440 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,575 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,031 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,312 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,895 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,958 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,518 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,423 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,620 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,331 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,555 |
