| Biggest Cities in Asia | 0 | - | 4.94 | 97,157 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 44,082 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 121,790 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 103,972 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,495 |
| Biggest Cities in the World | 0 | - | 4.90 | 696,129 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,541 |
| Biggest Cities in Germany | 0 | - | 4.95 | 266,169 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,621 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 78,069 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,334 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,283 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 172,441 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,323 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,416 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,066 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 201,967 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,654 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 375,584 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,277 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,773 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 307,575 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 99,139 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,387 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,745 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,101 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 108,384 |
| Biggest Cities in the United States | 0 | - | 4.93 | 842,902 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 337,088 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,700 |
| Biggest Cities by Language | 0 | - | 4.95 | 215,545 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,173 |
| Most Populous World Capitals | 0 | - | 4.93 | 149,716 |
| Biggest European Cities by Century | 0 | - | 4.98 | 119,830 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 142,578 |
| Megacities on a World Map | 0 | - | 4.98 | 222,689 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,442 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 519,388 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,455 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,157 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,379 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,589 |
| 500 Biggest US Cities | 0 | - | 4.88 | 99,848 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,279 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 85,700 |
| Biggest City in Each U.S. State | 0 | - | 4.83 | 152,443 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,301 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,090 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 44,818 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,880 |
| Biggest Cities in Europe | 0 | - | 4.76 | 470,488 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,297 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,163 |
| Biggest Cities in China | 0 | - | 4.57 | 140,464 |
| Biggest Cities in India | 0 | - | 4.71 | 62,922 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,876 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 39,165 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,452 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,185 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,311 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,374 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.21 | 17,384 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,154 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 69,284 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,076 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,305 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,312 |
| Biggest Cities in France | 0 | - | 4.76 | 201,585 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,293 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,826 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,656 |
| Biggest Cities in the UK | 0 | - | 4.46 | 94,489 |
| Cities of Ireland | 0 | - | 4.43 | 40,075 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,677 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,902 |
| Biggest Cities in Italy | 0 | - | 4.66 | 219,668 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,799 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,101 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,241 |
| Biggest City by Region | 0 | - | 4.50 | 33,918 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,762 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,545 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,467 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,259 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,878 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,631 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 65,804 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,869 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,169 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,545 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,403 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,651 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,239 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 37,094 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,905 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,793 |
| Biggest City by Island | 0 | - | 4.57 | 45,980 |
| Biggest Cities in History | 0 | - | 4.50 | 81,348 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,313 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,390 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,904 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,532 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,754 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,000 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,342 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 107,609 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 98,614 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 111,515 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 129,966 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 115,650 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,426 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,856 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,066 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,729 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,253 |
| Biggest U.S. Cities A-Z | 0 | - | 4.72 | 132,362 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,727 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 110,793 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,181 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,483 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,123 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,816 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,091 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 153,981 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,285 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,361 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,086 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,649 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 74,961 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,587 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 20,986 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,462 |
| Biggest Cities in North Carolina | 0 | - | 4.65 | 32,314 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 204,659 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,321,675 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,904 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,812 |
| Countries with Megacities | 0 | - | 4.99 | 200,109 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,658 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,119 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,190 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,100 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,934 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,721 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,640 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 93,672 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,846 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 82,340 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,575 |
| Largest Nordic Cities on a Map | 0 | - | 4.79 | 23,805 |
| Cities on Interstate 90 on a Map | 0 | - | 4.43 | 28,827 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,905 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 149,537 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,649 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,404 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 115,761 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,181 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 67,135 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.77 | 19,415 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,373 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,638 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,906 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,026 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,934 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,936 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,554 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,015 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,426 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,660 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,276 |
| The Most Populous U.S. City by Category | 0 | - | 4.30 | 20,085 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 88,757 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 74,782 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.32 | 83,038 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 88,841 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 70,651 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,191 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,859 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,203 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,113 |
| Biggest Cities in California | 0 | - | 4.35 | 131,335 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,877 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,242 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 43,009 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,082 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,064 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,602 |
| Countries of Europe by Population | 0 | - | 4.98 | 129,603 |
| Most Populous Countries by Year | 0 | - | 4.81 | 94,900 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,083 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 97,662 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 82,508 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 94,399 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 72,004 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 86,479 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 28,948 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,609 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 206,711 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,365 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,080 |
