| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,496 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 70,904 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.87 | 101,128 |
| Biggest Cities in the World | 0 | - | 4.90 | 702,646 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,211 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,444 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 43,039 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,281 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,687 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 378,254 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,419 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 309,804 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,248 |
| Biggest Cities in the United States | 0 | - | 4.93 | 848,940 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 338,608 |
| Biggest City by Time Zone | 0 | - | 4.85 | 55,979 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,422 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,248 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,242 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,616 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,813 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,381 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,924 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,987 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,862 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,216 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,996 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,884 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,983 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,727 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 109,513 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,753 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 105,099 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 522,887 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,789 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,198 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,395 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,374 |
| Most Populous World Capitals | 0 | - | 4.94 | 162,260 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,538 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,621 |
| Megacities on a World Map | 0 | - | 4.98 | 223,705 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,630 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,902 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,701 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,492 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 91,897 |
| Biggest Cities in Germany | 0 | - | 4.95 | 267,961 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,358 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,522 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,718 |
| Biggest Cities in Europe | 0 | - | 4.75 | 489,196 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,781 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,572 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,838 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,301 |
| Largest Nordic Cities on a Map | 0 | - | 4.81 | 30,467 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,944 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,681 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,533 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,479 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,587 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 63,170 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,847 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,397 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,498 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,419 |
| Biggest Cities in California | 0 | - | 4.35 | 132,018 |
| Biggest Cities in Florida | 0 | - | 4.20 | 68,183 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,502 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 43,172 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,278 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,486 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,714 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 62,070 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.47 | 46,224 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,623 |
| Biggest Mediterranean Cities | 0 | - | 4.58 | 87,275 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,607 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 49,189 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 464,554 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 61,099 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,288 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 43,383 |
| Biggest City by Region | 0 | - | 4.50 | 34,056 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 54,026 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 78,911 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,670 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,998 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,423 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 137,485 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,331 |
| Biggest City by Island | 0 | - | 4.57 | 46,117 |
| Biggest Cities in History | 0 | - | 4.50 | 81,863 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,548 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,338 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,910 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,629 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 95,205 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 37,162 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 65,144 |
| Biggest Cities in Japan | 0 | - | 4.66 | 76,675 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,615 |
| Biggest Cities in France | 0 | - | 4.71 | 202,995 |
| Biggest Cities in Spain | 0 | - | 4.55 | 156,267 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 51,186 |
| Biggest Cities in Poland | 0 | - | 4.57 | 49,062 |
| Biggest Cities in the UK | 0 | - | 4.46 | 95,166 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,656 |
| Biggest Cities in China | 0 | - | 4.55 | 141,746 |
| Cities of Ireland | 0 | - | 4.43 | 44,002 |
| Biggest Cities in Canada | 0 | - | 4.66 | 122,400 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 44,122 |
| Biggest Cities in India | 0 | - | 4.71 | 63,287 |
| Biggest Cities in Italy | 0 | - | 4.66 | 221,385 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 25,358 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 30,300 |
| Biggest Cities in Virginia | 0 | - | 4.21 | 23,307 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 19,067 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,974 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 29,095 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,974 |
| Biggest Cities in Louisiana | 0 | - | 4.12 | 18,546 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 28,151 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,677 |
| Biggest Cities in Missouri | 0 | - | 4.21 | 16,079 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 19,427 |
| Biggest Cities in Indiana | 0 | - | 4.29 | 24,536 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 114,070 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 108,374 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 99,302 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 112,256 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 130,931 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 116,340 |
| U.S. State Flags | 0 | - | 4.88 | 140,436 |
| U.S. States that Border Tennessee | 0 | - | 4.84 | 58,101 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,668 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,408 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 66,649 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 41,765 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 124,259 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 78,277 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,647 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,664 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,244 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,922 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,146 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 154,775 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,382 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,442 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,754 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,224 |
| Flags to Largest Cities | 0 | - | 4.55 | 32,995 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 21,196 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,989 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 205,985 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,922 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,387 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,824 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,563 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,623 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,800 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 83,108 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,660 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 169,030 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,881 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,129 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,971 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 22,036 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 150,417 |
| Biggest Cities Starting With C | 0 | - | 4.08 | 98,080 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,999 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 116,393 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,854 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 523,266 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,046 |
| Countries with Megacities | 0 | - | 4.99 | 201,861 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,389 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,970 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,255 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,884 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,057 |
| Largest World Cities With Four Letters | 0 | - | 4.38 | 43,589 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,581 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,767 |
| Which City in Canada? | 0 | - | 4.90 | 45,950 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 108,622 |
| Hawaiian Islands | 0 | - | 4.86 | 38,931 |
| U.S. States that Border Canada | 0 | - | 4.90 | 167,032 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,107 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,436 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,312 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,361 |
| Most Populous Countries by Year | 0 | - | 4.81 | 95,804 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,578 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,267 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,254 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,377 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 98,415 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 84,683 |
