| Biggest Cities in Asia | 0 | - | 4.94 | 98,138 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,416 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,598 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,543 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 105,018 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,670 |
| Biggest Cities in the World | 0 | - | 4.90 | 702,145 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,999 |
| Biggest Cities in Germany | 0 | - | 4.95 | 267,785 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,806 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,191 |
| Biggest City by Time Zone | 0 | - | 4.85 | 55,922 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,344 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,107 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,184 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,521 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,746 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,132 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,313 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 377,999 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,879 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,980 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.98 | 309,595 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,123 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,830 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,968 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,684 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 109,416 |
| Biggest Cities in the United States | 0 | - | 4.93 | 848,422 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 338,456 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,157 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,303 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,345 |
| Most Populous World Capitals | 0 | - | 4.94 | 162,132 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,291 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,393 |
| Megacities on a World Map | 0 | - | 4.98 | 223,631 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,733 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 522,544 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,856 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,661 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 70,836 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.88 | 101,028 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,744 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 91,704 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,290 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,582 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,564 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,424 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,656 |
| Biggest Cities in Europe | 0 | - | 4.75 | 488,026 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,741 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,635 |
| Biggest Cities in China | 0 | - | 4.55 | 141,546 |
| Biggest Cities in India | 0 | - | 4.71 | 63,260 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,365 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,738 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,450 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,559 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,626 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,500 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 30,587 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,597 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,254 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,583 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,592 |
| Biggest Cities in France | 0 | - | 4.71 | 202,849 |
| Biggest Cities in Spain | 0 | - | 4.55 | 156,179 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 51,147 |
| Biggest Cities in Poland | 0 | - | 4.57 | 49,036 |
| Biggest Cities in the UK | 0 | - | 4.46 | 95,098 |
| Cities of Ireland | 0 | - | 4.43 | 40,308 |
| Biggest Cities in Canada | 0 | - | 4.66 | 122,304 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 44,105 |
| Biggest Cities in Italy | 0 | - | 4.66 | 221,269 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 61,076 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,267 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 43,372 |
| Biggest City by Region | 0 | - | 4.50 | 34,049 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 54,007 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,659 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,953 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,663 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,415 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 49,171 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,915 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 66,577 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,298 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,325 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,883 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 63,113 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,830 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,380 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,476 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,987 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 137,440 |
| Biggest City by Island | 0 | - | 4.57 | 46,103 |
| Biggest Cities in History | 0 | - | 4.50 | 81,823 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,526 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,600 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 65,107 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 32,270 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,982 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,870 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,114 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 114,010 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 108,331 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 99,259 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 112,203 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 130,863 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 116,270 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 62,049 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 44,334 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 37,131 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,388 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.21 | 17,537 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,728 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,565 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,519 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,592 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,650 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,235 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,912 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,142 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 154,701 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,376 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,434 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,211 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,850 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,192 |
| Flags to Largest Cities | 0 | - | 4.55 | 32,966 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 21,174 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,574 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,485 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 205,856 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,307 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,249 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,954 |
| Countries with Megacities | 0 | - | 4.99 | 201,737 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,260 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,917 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 98,177 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,810 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 252,877 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,790 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,878 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 95,070 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,971 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 83,039 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,651 |
| Largest Nordic Cities on a Map | 0 | - | 4.79 | 29,395 |
| Cities on Interstate 90 on a Map | 0 | - | 4.44 | 29,169 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,964 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 150,351 |
| Biggest Cities Starting With C | 0 | - | 4.08 | 98,046 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,966 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 116,337 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,791 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.79 | 19,647 |
| Largest World Cities With Four Letters | 0 | - | 4.38 | 43,573 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,589 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,066 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,392 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,251 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,536 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,240 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,196 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,317 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,564 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,748 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,352 |
| The Most Populous U.S. City by Category | 0 | - | 4.31 | 20,930 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 89,428 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 75,385 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.30 | 83,797 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 89,435 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 71,168 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,761 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 61,099 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,423 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,399 |
| Biggest Cities in California | 0 | - | 4.35 | 131,975 |
| Biggest Cities in Florida | 0 | - | 4.20 | 68,159 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,481 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 43,161 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,264 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,452 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,707 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,132 |
| Most Populous Countries by Year | 0 | - | 4.81 | 95,742 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,356 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 98,357 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 84,552 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 95,039 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 72,911 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 86,922 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 29,195 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,720 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 207,718 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,881 |
