| Biggest Cities in Asia | 0 | - | 4.94 | 97,103 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,052 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 121,712 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 103,792 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,485 |
| Biggest Cities in the World | 0 | - | 4.90 | 695,686 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,497 |
| Biggest Cities in Germany | 0 | - | 4.95 | 266,036 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,610 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 77,984 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,302 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,225 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 172,294 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,262 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,335 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,019 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 201,892 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,621 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 375,429 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,225 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,759 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 307,419 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 99,028 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,362 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,733 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,068 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 108,278 |
| Biggest Cities in the United States | 0 | - | 4.93 | 842,521 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 336,981 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,665 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,333 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,153 |
| Most Populous World Capitals | 0 | - | 4.93 | 149,663 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,795 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 142,234 |
| Megacities on a World Map | 0 | - | 4.98 | 222,634 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,397 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 519,169 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,425 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,127 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,326 |
| 500 Biggest US Cities | 0 | - | 4.88 | 99,739 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,217 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,653 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 152,368 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,287 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,048 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 44,774 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,836 |
| Biggest Cities in Europe | 0 | - | 4.76 | 470,209 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,270 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,132 |
| Biggest Cities in China | 0 | - | 4.57 | 140,384 |
| Biggest Cities in India | 0 | - | 4.71 | 62,903 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,821 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,144 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,426 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,165 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,287 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,356 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,133 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 69,270 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,070 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,276 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,296 |
| Biggest Cities in France | 0 | - | 4.76 | 201,501 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,231 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,799 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,631 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,449 |
| Cities of Ireland | 0 | - | 4.43 | 40,062 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,639 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,887 |
| Biggest Cities in Italy | 0 | - | 4.66 | 219,569 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,783 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,089 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,234 |
| Biggest City by Region | 0 | - | 4.50 | 33,908 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,750 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,542 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,421 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,584 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,253 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,865 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,610 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 65,747 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,838 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,155 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,532 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,350 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,633 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,225 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 37,053 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,897 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,768 |
| Biggest City by Island | 0 | - | 4.57 | 45,971 |
| Biggest Cities in History | 0 | - | 4.50 | 81,302 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,290 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,382 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,885 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,503 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,744 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 18,987 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,299 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,584 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 98,570 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,476 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 129,921 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,620 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,419 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,843 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,018 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,700 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,245 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.21 | 17,375 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,336 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,674 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 110,741 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,146 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,473 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,114 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,813 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,088 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 153,925 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,280 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,353 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,079 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,634 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 74,928 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,557 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 20,970 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,457 |
| Biggest Cities in North Carolina | 0 | - | 4.65 | 32,284 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 204,541 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,321,155 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,610 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,741 |
| Countries with Megacities | 0 | - | 4.99 | 199,999 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,550 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,067 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,121 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,046 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,786 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,718 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,626 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 93,569 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,837 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,268 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,569 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 23,773 |
| Cities on Interstate 90 on a Map | 0 | - | 4.43 | 28,795 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,900 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,475 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,625 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,380 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,710 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,141 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.77 | 19,401 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,351 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,607 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,858 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,956 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,894 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,911 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,485 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,991 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,419 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,653 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,271 |
| The Most Populous U.S. City by Category | 0 | - | 4.31 | 18,811 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 88,706 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 74,735 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.32 | 82,975 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 88,790 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 70,613 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,151 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,841 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,177 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,074 |
| Biggest Cities in California | 0 | - | 4.35 | 131,269 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,833 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,199 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,976 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,028 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,002 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,576 |
| Countries of Europe by Population | 0 | - | 4.98 | 129,467 |
| Most Populous Countries by Year | 0 | - | 4.81 | 94,843 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,069 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 97,602 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 82,282 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 94,355 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 71,930 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 86,442 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 28,931 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,600 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 206,630 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,328 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,060 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,612 |
