| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,613 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,890 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,432 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,140 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,385 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,488 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,139 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,943 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,733 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,587 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,103 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,216 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,973 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,881 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,688 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,653 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,963 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,395 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,210 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,111 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,725 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,854 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,319 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,577 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,801 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,295 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,559 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,245 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,196 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,554 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,004 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,625 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,466 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,053 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,209 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,631 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,799 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,875 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,835 |
| Largest City by Island | 0 | - | 4.87 | 72,584 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,506 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,261 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,617 |
| Megacities on a World Map | 0 | - | 4.98 | 257,522 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,824 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,855 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,843 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,604 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,811 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,682 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,837 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,881 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,181 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,200 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,141 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,377 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,718 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,722 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,522 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,389 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,099 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,740 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,374 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,038 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,843 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,543 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,665 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,264 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,036 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,539 |
| Countries with Megacities | 0 | - | 4.99 | 267,947 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,194 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,355 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,513 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,461 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,034 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,098 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,218 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,679 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,182 |
| Biggest City by Region | 0 | - | 4.50 | 36,419 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,379 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,233 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,331 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,461 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,625 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,607 |
| Random African Capital to Country | 0 | - | 4.97 | 101,498 |
| Random African Country to Capital | 0 | - | 4.94 | 71,901 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,480 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,549 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,836 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,006 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,380 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,739 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,560 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,622 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,111 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,550 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,203 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,035 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,564 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,247 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,053 |
| Biggest Cities in History | 0 | - | 4.52 | 90,713 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,218 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,976 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,432 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,119 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,787 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,648 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,724 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,462 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,739 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,093 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,615 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,844 |
| Biggest Cities in France | 0 | - | 4.72 | 225,656 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,386 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,360 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,358 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,984 |
| Biggest Cities in China | 0 | - | 4.53 | 160,214 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,681 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,516 |
| Biggest Cities in India | 0 | - | 4.64 | 68,130 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,758 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,254 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,252 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,070 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,688 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,219 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,867 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,678 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,634 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,068 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,418 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,978 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,594 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,876 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,908 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,067 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,271 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,202 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,153 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,935 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,530 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,603 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,972 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,950 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,504 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,644 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,046 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,027 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,621 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,286 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,577 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,933 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,879 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,836 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,338 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,953 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,475 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,324 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,099 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,984 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,123 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,720 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,729 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,595 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,798 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,276 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,383 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,377 |
| Most Populous Islands | 0 | - | 4.80 | 123,453 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,405 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,681 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,024 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,548 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,904 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,221 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,502 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,066 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,845 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,121 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,927 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,936 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,450 |
| Cities of Ireland | 0 | - | 4.51 | 50,962 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,237 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,527 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,007 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,295 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,405 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,933 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,882 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,576 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,469 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,932 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,318 |
