| Biggest Cities in the World | 0 | - | 4.91 | 796,857 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,514 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,969 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,226 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,937 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,935 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,420 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,232 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,513 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,693 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,800 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 61,312 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,397 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,893 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,555 |
| Biggest Cities in the United States | 0 | - | 4.94 | 975,879 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,582 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,060 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,040 |
| Largest City by Island | 0 | - | 4.87 | 71,692 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,798 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,687 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,270 |
| Megacities on a World Map | 0 | - | 4.98 | 253,487 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,121 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,224 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,726 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,262 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,100 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,914 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,673 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,904 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,848 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,129 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,820 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,799 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,406 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,944 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,542 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,004 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,408 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,049 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,924 |
| Biggest City by Region | 0 | - | 4.50 | 36,128 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,057 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,155 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,330 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,169 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,371 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,687 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,918 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,056 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,076 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,159 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,239 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,599 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,515 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,057 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,500 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,080 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,332 |
| Biggest Cities in History | 0 | - | 4.52 | 90,020 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 76,311 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,971 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,682 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,359 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,526 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,398 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,027 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,132 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,464 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,215 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,534 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,126 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,898 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,005 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,034 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,757 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,537 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,538 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,048 |
| Countries with Megacities | 0 | - | 4.99 | 260,489 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,918 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,011 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,193 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,017 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,663 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,951 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,144 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,369 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,479 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,417 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,771 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,395 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,242 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.69 | 64,710 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,502 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,873 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,912 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,512 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,166 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,980 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,378 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,067 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,744 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,565 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,453 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,692 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,281 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,381 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,937 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,660 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,680 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,172 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,366 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,256 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,902 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,012 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,751 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,190 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,988 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,803 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,221 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,558 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,451 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,957 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,835 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,914 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,780 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,342 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,832 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,227 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,410 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,511 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,243 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,733 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,985 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,179 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,829 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,782 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,025 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,755 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,483 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,876 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,440 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,025 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,207 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,929 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,316 |
| Biggest Cities in France | 0 | - | 4.70 | 223,632 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,892 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,907 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,801 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,085 |
| Biggest Cities in China | 0 | - | 4.52 | 158,258 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,696 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,169 |
| Biggest Cities in India | 0 | - | 4.63 | 67,668 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,780 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,016 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,220 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,435 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,490 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,639 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,446 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,402 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,618 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,128 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,773 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,119 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,096 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,516 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,167 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,450 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,092 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,798 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,924 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,358 |
| Boundary Waters | 0 | - | 4.92 | 88,382 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,087 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,920 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,193 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,350 |
| Most Populous Islands | 0 | - | 4.80 | 122,803 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,279 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,509 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,486 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,543 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,058 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,659 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,772 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,357 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,060 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,142 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,720 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,322 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,553 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,252 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,126 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,169 |
