| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,258 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,417 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,329 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 81,466 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,820 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,879 |
| US States and State Capitals | 0 | - | 4.99 | 162,473 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,741 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,015 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,098 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,202 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,252 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,994 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,961 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,387 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,817 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,362 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,215 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,081 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,309 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,438 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,257 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,895 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,054 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,896 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,970 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,574 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,095 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,373 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,137 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,912 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,838 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,538 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,126 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,698 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,931 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,729 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,727 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,061 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,524 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,649 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,357 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,527 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,206 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,334 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,503 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,561 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,417 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,407 |
| Largest City by Island | 0 | - | 4.87 | 71,877 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,004 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,968 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,536 |
| Megacities on a World Map | 0 | - | 4.98 | 254,572 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 88,425 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,242 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,353 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,948 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,975 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,838 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,398 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,692 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,180 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,027 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,076 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,201 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,744 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,558 |
| Biggest Cities in California | 0 | - | 4.35 | 139,892 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,117 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,684 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,409 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,400 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,259 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,650 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,779 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,350 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,197 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,263 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,301 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,102 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,826 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,558 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,426 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,194 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,573 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,945 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,910 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,533 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,495 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,300 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,190 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,142 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,348 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,755 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,331 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,499 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 28,348 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,169 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,756 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,893 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,937 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,982 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,599 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,189 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,426 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,893 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,037 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,828 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,368 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,972 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,188 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,661 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,472 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,989 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,077 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,638 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,918 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,571 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,837 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,655 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,480 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,722 |
| Countries with Megacities | 0 | - | 4.99 | 263,475 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,825 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,915 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,321 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,395 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,258 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,615 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,546 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,294 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,089 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,580 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,088 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,987 |
| Biggest City by Region | 0 | - | 4.50 | 36,225 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,141 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,188 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,352 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,264 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,841 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,999 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,094 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,418 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,591 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,388 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,316 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,102 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,426 |
| Biggest Cities in France | 0 | - | 4.70 | 224,019 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,163 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,001 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,909 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,257 |
| Biggest Cities in China | 0 | - | 4.53 | 158,618 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,874 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,217 |
| Biggest Cities in India | 0 | - | 4.64 | 67,755 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,104 |
| Which City in Canada? | 0 | - | 4.83 | 57,077 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,179 |
| U.S. State Flags | 0 | - | 4.89 | 170,523 |
| Hawaiian Islands | 0 | - | 4.83 | 42,718 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,322 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,827 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,636 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,613 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,452 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,904 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,162 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,320 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,891 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,599 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,592 |
| Biggest Cities in History | 0 | - | 4.52 | 90,163 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,503 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,956 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,410 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,643 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,599 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,467 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,393 |
| Cities of Ireland | 0 | - | 4.51 | 50,661 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,189 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,906 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,359 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,656 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,437 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,010 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,403 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,127 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,009 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,291 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,200 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,758 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,254 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,545 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,256 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,977 |
