| Biggest Cities in the World | 0 | - | 4.92 | 790,647 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,677 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,726 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,013 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,896 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,108 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,513 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,546 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,613 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,070 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,191 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,767 |
| 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 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,735 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,987 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,874 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,531 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,880 |
| 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 | 174,573 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,855 |
| Megacities on a World Map | 0 | - | 4.98 | 251,042 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,384 |
| 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 | 73,892 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,812 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,183 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,068 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,389 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,577 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,146 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,534 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,310 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,544 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,127 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,530 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,628 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,827 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,935 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,911 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,713 |
| Biggest City by Region | 0 | - | 4.50 | 36,000 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,907 |
| 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 | 82,927 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,262 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,666 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,053 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,310 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,475 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,333 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,755 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,810 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,535 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,552 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,257 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,244 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,410 |
| Biggest Cities in History | 0 | - | 4.52 | 89,143 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,125 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,658 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,305 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,190 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,851 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,203 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,350 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,527 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,984 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,618 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,928 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,205 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,009 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,864 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,978 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,671 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,466 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,225 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,369 |
| Countries with Megacities | 0 | - | 4.99 | 247,131 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,225 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,045 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,653 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,958 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,357 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,949 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,077 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,073 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,397 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,737 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,124 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,035 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,943 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,289 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,754 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,845 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,806 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,610 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,644 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,795 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,466 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,133 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,868 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,984 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,918 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,510 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,637 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,308 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,331 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,487 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,618 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,699 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,804 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,307 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,414 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,400 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,692 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,884 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,662 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,094 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,238 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,317 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,858 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,271 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,712 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,627 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,173 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,562 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,165 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,278 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,165 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,377 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,982 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,434 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,625 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,321 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,656 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,767 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,490 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,259 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,460 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,333 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,792 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,813 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,538 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,032 |
| Biggest Cities in France | 0 | - | 4.69 | 222,270 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,873 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,663 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,466 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,176 |
| Biggest Cities in China | 0 | - | 4.53 | 157,057 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,847 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,970 |
| Biggest Cities in India | 0 | - | 4.70 | 67,343 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,524 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,489 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,506 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,060 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,113 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,382 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,207 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,124 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,329 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,789 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,514 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,331 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,311 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,638 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,590 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,842 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,247 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,149 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,154 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,014 |
| Boundary Waters | 0 | - | 4.92 | 88,059 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,823 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,313 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,327 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,856 |
| Most Populous Islands | 0 | - | 4.79 | 122,004 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,203 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,408 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,021 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,043 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,885 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,019 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,622 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,833 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,435 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,861 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,162 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,954 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,454 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,015 |
| 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 | 78,922 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,726 |
