| Biggest Cities in the World | 0 | - | 4.91 | 800,750 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,253 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,994 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,807 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,696 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,736 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,104 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,747 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,658 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,227 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,141 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,260 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,801 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,872 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,035 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,801 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,706 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,288 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,030 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,930 |
| Largest City by Island | 0 | - | 4.87 | 72,048 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,142 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,178 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,742 |
| Megacities on a World Map | 0 | - | 4.98 | 255,270 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,490 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,163 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,160 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,677 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,640 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,513 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,321 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,202 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,687 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,164 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,348 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,995 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,626 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,759 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,061 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,669 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,527 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,518 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,699 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,958 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,016 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,425 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,471 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,719 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,562 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,042 |
| Biggest City by Region | 0 | - | 4.50 | 36,276 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,190 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,223 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,376 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,353 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,455 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,881 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,130 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,286 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,495 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,948 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,952 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,630 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,403 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,410 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,565 |
| Biggest Cities in History | 0 | - | 4.52 | 90,286 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,050 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,478 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,053 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,531 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,492 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,202 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,263 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,122 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,640 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,504 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,764 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,551 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,154 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,573 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,262 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,514 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,080 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,092 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,843 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,572 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,710 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,868 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,567 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,356 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,836 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,350 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,053 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,945 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,867 |
| Countries with Megacities | 0 | - | 4.99 | 264,489 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,721 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,457 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,978 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,523 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,813 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,458 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,793 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,997 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,505 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,221 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,257 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,945 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,943 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,413 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,194 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,746 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,419 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,717 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,677 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,439 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,045 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,920 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,165 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,129 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,547 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,725 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,210 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,763 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,510 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,090 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,024 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,404 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,047 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,887 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,443 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,007 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,622 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,182 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,906 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,617 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,256 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,186 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,245 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,425 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,206 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,506 |
| Biggest Cities in France | 0 | - | 4.70 | 224,366 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,408 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,075 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,005 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,413 |
| Biggest Cities in China | 0 | - | 4.53 | 158,979 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,039 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,297 |
| Biggest Cities in India | 0 | - | 4.64 | 67,834 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,435 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,388 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,852 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,906 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,297 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,695 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,709 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,131 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,319 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,476 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,973 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,285 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,340 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,868 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,489 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,206 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,405 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,245 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,477 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,612 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,663 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,778 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,555 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,522 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,742 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,209 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,488 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,295 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,901 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,331 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,635 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,399 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,569 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,485 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,175 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,333 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,326 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,403 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,081 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,297 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,194 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,628 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,324 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,568 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,501 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,132 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,618 |
