| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,241 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,307 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,291 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,800 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,849 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,111 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,702 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,004 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,101 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,087 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,821 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,550 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,982 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,191 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,197 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,250 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,859 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,372 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,807 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,350 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,301 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,422 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,659 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,248 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,441 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,185 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,893 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,953 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,559 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,071 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,359 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,877 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,822 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,530 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,059 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,912 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,677 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,050 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,500 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,637 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,346 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,867 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,789 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,125 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,210 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,719 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,333 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,485 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,546 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,405 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,374 |
| Largest City by Island | 0 | - | 4.87 | 71,871 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,989 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,958 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,525 |
| Megacities on a World Map | 0 | - | 4.98 | 254,546 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.45 | 88,185 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,347 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,935 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,971 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,836 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,394 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,673 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,178 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,018 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,071 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,200 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,739 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,555 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,368 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,240 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,418 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,191 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,571 |
| Hawaiian Islands | 0 | - | 4.83 | 42,715 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,288 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,907 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,531 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,487 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,298 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,155 |
| US States and State Capitals | 0 | - | 4.99 | 162,448 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,952 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,178 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,288 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,753 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,328 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,140 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,068 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,211 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,077 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,727 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,352 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,467 |
| Countries with Megacities | 0 | - | 4.99 | 263,420 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,303 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,250 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,601 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,286 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,491 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,415 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,617 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,572 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,087 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,655 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,985 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,472 |
| Biggest City by Region | 0 | - | 4.50 | 36,224 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,140 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,988 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,187 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,351 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,261 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,995 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,089 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,417 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,313 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,094 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,422 |
| Biggest Cities in France | 0 | - | 4.70 | 224,004 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,152 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,001 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,907 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,637 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,252 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,911 |
| Biggest Cities in China | 0 | - | 4.53 | 158,603 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,215 |
| Biggest Cities in India | 0 | - | 4.64 | 67,748 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,091 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,564 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,343 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,114 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,976 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,886 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,238 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,474 |
| Rivers of the United States | 0 | - | 4.93 | 66,205 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,722 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,811 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,908 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,394 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,538 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,086 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,589 |
| Biggest Cities in History | 0 | - | 4.52 | 90,155 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,469 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,407 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,841 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,590 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,466 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,391 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,387 |
| Biggest Cities in California | 0 | - | 4.35 | 139,887 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,115 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,679 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,405 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,258 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,649 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,777 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,346 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,196 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,351 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,650 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,429 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,000 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,394 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,121 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,043 |
| Which City in Canada? | 0 | - | 4.83 | 57,074 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,264 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,172 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,130 |
| U.S. State Flags | 0 | - | 4.89 | 170,481 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,944 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,320 |
| State Quiz - Florida | 0 | - | 4.47 | 62,337 |
| State Quiz - Texas | 0 | - | 4.43 | 62,872 |
| State Quiz - New York | 0 | - | 4.52 | 46,111 |
| State Quiz - California | 0 | - | 4.69 | 64,428 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,724 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,805 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,632 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,608 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,444 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,896 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,157 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,314 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,890 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,053 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,592 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,064 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,824 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,551 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,621 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,598 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,607 |
| Cities of Ireland | 0 | - | 4.51 | 50,661 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,188 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,999 |
