| Biggest Cities in the World | 0 | - | 4.92 | 791,018 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,722 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,776 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,130 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,961 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,234 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,565 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,578 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,668 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,107 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,221 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,795 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,754 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,623 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,894 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,570 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,005 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,624 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,931 |
| Largest City by Island | 0 | - | 4.87 | 71,098 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,426 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,619 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,163 |
| Megacities on a World Map | 0 | - | 4.98 | 251,175 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,611 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,843 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,929 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,895 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,243 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,113 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,499 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,594 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,307 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,586 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,344 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,563 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,140 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,620 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,678 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,885 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,967 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,920 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,732 |
| Biggest City by Region | 0 | - | 4.50 | 36,008 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,917 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,033 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,231 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,940 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,266 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,725 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,133 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,351 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,513 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,387 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,787 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,866 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,589 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,580 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,399 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,642 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,449 |
| Biggest Cities in History | 0 | - | 4.52 | 89,170 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,137 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,674 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,405 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,210 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,891 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,209 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,474 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,555 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,014 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,654 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,957 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,256 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,039 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,875 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,980 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,676 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,473 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,246 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,542 |
| Countries with Megacities | 0 | - | 4.99 | 247,409 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,369 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,152 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,798 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,066 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,462 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,965 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,170 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,087 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,940 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,866 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,140 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,051 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,987 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,299 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,764 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,851 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,838 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,627 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,663 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,825 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,496 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,173 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,953 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,175 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,987 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,545 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,747 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,370 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,348 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,496 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,638 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,740 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,841 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,334 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,445 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,461 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,732 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,890 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,678 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,105 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,254 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,322 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,865 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,301 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,727 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,635 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,182 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,576 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,273 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,349 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,189 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,432 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,037 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,477 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,665 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,346 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,663 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,780 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,510 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,271 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,495 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,337 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,810 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,838 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,576 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,048 |
| Biggest Cities in France | 0 | - | 4.69 | 222,513 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,969 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,680 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,485 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,228 |
| Biggest Cities in China | 0 | - | 4.53 | 157,127 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,886 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,987 |
| Biggest Cities in India | 0 | - | 4.70 | 67,364 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,624 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,515 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,531 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,076 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,130 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,395 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,218 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,132 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,344 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,800 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,570 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,387 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,342 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,683 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,626 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,879 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,297 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,193 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,204 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,041 |
| Boundary Waters | 0 | - | 4.92 | 88,070 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,841 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,363 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,386 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,885 |
| Most Populous Islands | 0 | - | 4.79 | 122,028 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,212 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,414 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,097 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,110 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,944 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,045 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,632 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,857 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,486 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,881 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,188 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,983 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,456 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,024 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,941 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,936 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,736 |
