| Biggest Cities in the World | 0 | - | 4.91 | 799,234 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,999 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,632 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,197 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,416 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,029 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,879 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,559 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,831 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,432 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,982 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,820 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,090 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,572 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,679 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,493 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,855 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,263 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,108 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,169 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,620 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,486 |
| Largest City by Island | 0 | - | 4.87 | 71,905 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,027 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,006 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,565 |
| Megacities on a World Map | 0 | - | 4.98 | 254,692 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,371 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,980 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,903 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,749 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,440 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,294 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,068 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,114 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,457 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,034 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,272 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,923 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,549 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,362 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,444 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,346 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,859 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,486 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 81,824 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,848 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,403 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,054 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,287 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,151 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,379 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,533 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,591 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,719 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,514 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,476 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,696 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,207 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,219 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,504 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,166 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,175 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,763 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,578 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,087 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,109 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,214 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,814 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,572 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,148 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,442 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,555 |
| Countries with Megacities | 0 | - | 4.99 | 263,636 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,390 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,295 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,668 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,333 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,534 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,599 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,095 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,329 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,998 |
| Biggest City by Region | 0 | - | 4.50 | 36,234 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,151 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,195 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,357 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,284 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,421 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,586 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,915 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,745 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,899 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,865 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,668 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,944 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,418 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,573 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,626 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,489 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,926 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,188 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,340 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,912 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,102 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 153,739 |
| Biggest Cities in History | 0 | - | 4.52 | 90,183 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,604 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,423 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,420 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,507 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,308 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,643 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,293 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,475 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,386 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,677 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,459 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,027 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,435 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,150 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,035 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,318 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,210 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,773 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,267 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,558 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,279 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,006 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,159 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,964 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,913 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,377 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,854 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,456 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,318 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,458 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,991 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,785 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,058 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,758 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,673 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,068 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,475 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,631 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,826 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,555 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,525 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,992 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 88,934 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,987 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,844 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,636 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,408 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,411 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,927 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,101 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,775 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,653 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,439 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 302,563 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,869 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,263 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,434 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,689 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,732 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,824 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,795 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,116 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,842 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,564 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,212 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,261 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,955 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,033 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,847 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,032 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,102 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,199 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,332 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,126 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,442 |
| Biggest Cities in France | 0 | - | 4.70 | 224,060 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,207 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,012 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,153 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,921 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,345 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,281 |
| Biggest Cities in China | 0 | - | 4.53 | 158,690 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,896 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,226 |
| Biggest Cities in India | 0 | - | 4.64 | 67,771 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,145 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,934 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,799 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,343 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,143 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,624 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,294 |
