| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,906 |
| Biggest Cities in the World | 0 | - | 4.90 | 702,686 |
| Biggest City by Time Zone | 0 | - | 4.85 | 55,982 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,431 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,252 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,246 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,623 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,814 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,384 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 378,275 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,928 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,997 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,885 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,988 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,730 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 109,515 |
| Biggest Cities in the United States | 0 | - | 4.93 | 848,989 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 338,624 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,286 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,694 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 309,815 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,256 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,201 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,401 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,375 |
| Most Populous World Capitals | 0 | - | 4.94 | 162,268 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,550 |
| Megacities on a World Map | 0 | - | 4.98 | 223,718 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,702 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,792 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 91,912 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,364 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,724 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,216 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,447 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,634 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,783 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 43,040 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,630 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,480 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,588 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,510 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,755 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 105,104 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 70,909 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.87 | 101,137 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,288 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 43,384 |
| Biggest City by Region | 0 | - | 4.50 | 34,056 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 54,029 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,670 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,998 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,431 |
| Biggest Cities in Europe | 0 | - | 4.75 | 489,233 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,621 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,496 |
| Biggest Cities in Germany | 0 | - | 4.95 | 267,981 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,422 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,843 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,568 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,607 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 137,485 |
| Biggest City by Island | 0 | - | 4.57 | 46,117 |
| Biggest Cities in History | 0 | - | 4.50 | 81,867 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,551 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 65,144 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,574 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,839 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,305 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 114,073 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 108,377 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 99,303 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 112,259 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 130,933 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 116,344 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,664 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,245 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,147 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,382 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,442 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,226 |
| Largest Nordic Cities on a Map | 0 | - | 4.81 | 30,496 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,681 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,625 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,277 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,608 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,960 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,397 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,056 |
| Countries with Megacities | 0 | - | 4.99 | 201,868 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,400 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,973 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,263 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,888 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,069 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,652 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 61,102 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,535 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 154,781 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 83,113 |
| Flags to Largest Cities | 0 | - | 4.55 | 33,000 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,972 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 205,987 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 150,421 |
| Biggest Cities Starting With C | 0 | - | 4.08 | 98,083 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 80,000 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 116,395 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,858 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,111 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,439 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,375 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,586 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,268 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,259 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,347 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,333 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,339 |
| Largest World Cities With Four Letters | 0 | - | 4.38 | 43,592 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 63,177 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 95,218 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,849 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,399 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,360 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,500 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,659 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 78,913 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 62,072 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.47 | 46,320 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 37,165 |
| Biggest Cities in Japan | 0 | - | 4.66 | 76,678 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,620 |
| Biggest Cities in France | 0 | - | 4.71 | 203,006 |
| Biggest Cities in Spain | 0 | - | 4.55 | 156,281 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 51,187 |
| Biggest Cities in Poland | 0 | - | 4.57 | 49,064 |
| Biggest Cities in the UK | 0 | - | 4.46 | 95,167 |
| Biggest Cities in China | 0 | - | 4.55 | 141,755 |
| Cities of Ireland | 0 | - | 4.47 | 44,245 |
| Biggest Cities in Canada | 0 | - | 4.66 | 122,409 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 44,124 |
| Biggest Cities in India | 0 | - | 4.71 | 63,291 |
| Biggest Cities in Italy | 0 | - | 4.66 | 221,390 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,769 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,320 |
| Most Populous Countries by Year | 0 | - | 4.81 | 95,808 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 67,667 |
| Demographics Multiple Choice | 0 | - | 4.66 | 40,210 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,378 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 98,418 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 84,692 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 95,079 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 72,975 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 86,946 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,577 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,864 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,218 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 29,215 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,668 |
| Cities in Squares on a Map - North America | 0 | - | 4.32 | 19,730 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 49,191 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,946 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 66,655 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 41,769 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 89,482 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 75,430 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.30 | 83,848 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 89,480 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 71,208 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,811 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 61,117 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,441 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 207,821 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,927 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,362 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,999 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 54,251 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 67,651 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 88,201 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 154,705 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 148,368 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 209,501 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 164,094 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,497 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 82,368 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,716 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 148,003 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,922 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.36 | 30,348 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 21,197 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,989 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 163,542 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 85,456 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 67,709 |
| Countries Closest to Africa | 0 | - | 4.95 | 146,653 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,838 |
| Most Populous Islands | 0 | - | 4.71 | 114,296 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,541 |
| Countries by Population Decrease | 0 | - | 4.43 | 47,001 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 50,409 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.88 | 15,771 |
