| Biggest Cities in the World | 0 | - | 4.91 | 799,469 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,067 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,704 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,319 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,476 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,159 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,912 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,598 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,949 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,041 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,881 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,127 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,614 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,715 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,588 |
| Biggest Cities in the United States | 0 | - | 4.94 | 979,112 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,316 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,559 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,743 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,602 |
| Largest City by Island | 0 | - | 4.87 | 71,934 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,049 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,033 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,589 |
| Megacities on a World Map | 0 | - | 4.98 | 254,778 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,396 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,001 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,807 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,469 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,010 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,330 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,104 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,132 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,481 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,059 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,938 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,564 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,485 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,895 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,447 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,384 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,369 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,514 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,121 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,877 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,107 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,315 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,617 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,098 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,006 |
| Biggest City by Region | 0 | - | 4.50 | 36,241 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,156 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,202 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,360 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,302 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,425 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,800 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,621 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,200 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,227 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,798 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,647 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,130 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,238 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,245 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 158,643 |
| Biggest Cities in History | 0 | - | 4.52 | 90,205 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,657 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,431 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,484 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,142 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,125 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,221 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,864 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,581 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,403 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,689 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,477 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,045 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,455 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,168 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,645 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,061 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,075 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,828 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,557 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,646 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,589 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,825 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,512 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,317 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,365 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,278 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,180 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,086 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,010 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,397 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,491 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,603 |
| Countries with Megacities | 0 | - | 4.99 | 263,774 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,452 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,316 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,718 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,359 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,761 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,366 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,660 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,960 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,430 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,121 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,185 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,935 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,822 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,354 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,154 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,647 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,320 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,935 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,767 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,925 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,976 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,438 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,593 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,114 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,688 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,478 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,849 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,995 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 89,328 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,993 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,851 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,412 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,936 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,548 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,122 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,854 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,568 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,106 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,115 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,346 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,138 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,450 |
| Biggest Cities in France | 0 | - | 4.70 | 224,106 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,238 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,020 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,934 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,303 |
| Biggest Cities in China | 0 | - | 4.53 | 158,745 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,908 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,238 |
| Biggest Cities in India | 0 | - | 4.64 | 67,779 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,188 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,703 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,713 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,929 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,966 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,690 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,874 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,266 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,637 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,516 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,957 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,210 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,363 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,921 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,227 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,275 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,854 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,473 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,158 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,358 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,168 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,389 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,549 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,603 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,728 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,518 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,483 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,702 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,056 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,350 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,219 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,789 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,279 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,570 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,293 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,332 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,302 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,024 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,182 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,002 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,945 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,410 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,869 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,468 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,346 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,020 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,595 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,341 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,602 |
