| Cities of China (With Some Help) | 0 | - | 4.86 | 28,212 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,875 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,451 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,293 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 91,920 |
| Biggest Cities in China | 0 | - | 4.64 | 138,642 |
| Biggest Cities in the World | 0 | - | 4.89 | 687,011 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,725 |
| Biggest Cities in Germany | 0 | - | 4.95 | 263,095 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,648 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 76,196 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,407 |
| Biggest City in Every Country | 0 | - | 4.97 | 78,835 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 169,809 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 92,096 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,250 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 64,933 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 199,230 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,461 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 371,289 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,258 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,374 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 304,132 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,512 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,711 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,372 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 55,238 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 106,427 |
| Biggest Cities in the United States | 0 | - | 4.93 | 820,082 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 333,984 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,032 |
| Biggest Cities by Language | 0 | - | 4.95 | 213,941 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 64,869 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,510 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,822 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 131,685 |
| Megacities on a World Map | 0 | - | 4.98 | 220,723 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.83 | 43,955 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 513,612 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,865 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,453 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,489 |
| 500 Biggest US Cities | 0 | - | 4.87 | 98,142 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,377 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,386 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,238 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 50,934 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 91,091 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,813 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,905 |
| Biggest Cities in Europe | 0 | - | 4.75 | 464,518 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,568 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,598 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,064 |
| Biggest Cities in Sweden | 0 | - | 4.82 | 37,243 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 63,750 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,866 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,950 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,587 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,790 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,582 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,867 |
| Biggest Cities in France | 0 | - | 4.76 | 199,625 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,565 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,470 |
| Biggest Cities in India | 0 | - | 4.72 | 62,399 |
| Biggest Cities in Italy | 0 | - | 4.65 | 217,196 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,380 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,543 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,073 |
| Biggest City by Region | 0 | - | 4.49 | 33,648 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,380 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,363 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,629 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,470 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,027 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,546 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,982 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 118,975 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,934 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 77,973 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 59,574 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,333 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,980 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,213 |
| Biggest City by Island | 0 | - | 4.57 | 45,772 |
| Biggest Cities in History | 0 | - | 4.50 | 80,236 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 67,969 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.49 | 40,131 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,589 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,783 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 112,220 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,880 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,664 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 110,504 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 128,843 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,716 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,242 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,558 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,783 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 36,062 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,407 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,183 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,091 |
| Cities of Ireland | 0 | - | 4.43 | 39,734 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,448 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,577 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,174 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,773 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,132 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,193 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,985 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,670 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,032 |
| Five Biggest Cities by Country | 0 | - | 4.67 | 152,479 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,113 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,247 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,871 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.67 | 56,310 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,533 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,716 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,964 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,717 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,398 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,765 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,954 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 193,947 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,311,183 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,579 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,796 |
| Countries with Megacities | 0 | - | 4.99 | 197,080 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,426 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,866 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,279 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,840 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,778 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,619 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 37,225 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 91,317 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,609 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 81,189 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,445 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,278 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,555 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,795 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.21 | 17,063 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,817 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 148,049 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,000 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,789 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,678 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,257 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,005 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,125 |
| Biggest Cities in Mexico | 0 | - | 4.55 | 29,252 |
| Biggest U.S. Cities A-Z | 0 | - | 4.63 | 122,134 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,978 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,101 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,004 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,009 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,937 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,578 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,509 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,262 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,551 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,177 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 14,697 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,305 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.38 | 86,307 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.38 | 72,565 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.31 | 80,852 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.11 | 86,283 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.17 | 67,817 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.25 | 63,444 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,250 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,653 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 28,839 |
| Biggest Cities in California | 0 | - | 4.35 | 130,429 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,359 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,837 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,674 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,700 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,370 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,378 |
| Countries of Europe by Population | 0 | - | 4.98 | 126,705 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,660 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,570 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,279 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,456 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 69,933 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,902 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 28,449 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,376 |
| Cities on Interstate 90 on a Map | 0 | - | 4.40 | 26,632 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,238 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,584 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,602 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,127 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,666 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,934 |
