| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,174 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,640 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,680 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,368 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,386 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,472 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,550 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,166 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,670 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,593 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,154 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,150 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,522 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,740 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,241 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,611 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,327 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,488 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,706 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,355 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,966 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,365 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,563 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,575 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,050 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,549 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,525 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,650 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,749 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,754 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,392 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,443 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,177 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,476 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,983 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,088 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,674 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,608 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,401 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,294 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,130 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,280 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,740 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,738 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,454 |
| Largest City by Island | 0 | - | 4.87 | 70,977 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,314 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,443 |
| Biggest European Cities by Century | 0 | - | 4.98 | 140,392 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,624 |
| Megacities on a World Map | 0 | - | 4.98 | 250,635 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,088 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,807 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,736 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,789 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,773 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,556 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,038 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,062 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,186 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,925 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,924 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,016 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,578 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,889 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,393 |
| The Most Populous U.S. City by Category | 0 | - | 4.35 | 22,248 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,263 |
| US States Quiz | 0 | - | 5.00 | 16,684,960 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,501 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,867 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,263 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,729 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,442 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,210 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,081 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,999 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,832 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,909 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,135 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,557 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,498 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,060 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,904 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,886 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,155 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,629 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,324 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,570 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,117 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,705 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,432 |
| States of Mexico | 0 | - | 4.95 | 173,152 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,675 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,938 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,357 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,924 |
| Countries with Megacities | 0 | - | 4.99 | 246,343 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,849 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,763 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,302 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,708 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,342 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,760 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,276 |
| Pixelated United States Map | 0 | - | 4.89 | 93,392 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,623 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,272 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,321 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,543 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,812 |
| U.S. States By Population | 0 | - | 4.92 | 152,289 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,299 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,798 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,475 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,727 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,811 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,851 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,887 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,189 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,661 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,297 |
| Biggest City by Region | 0 | - | 4.50 | 35,979 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,880 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,842 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,890 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,998 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,210 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,895 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,240 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,519 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,924 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,862 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,761 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,974 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,455 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,839 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,311 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,429 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,807 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,009 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,780 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,887 |
| US States with an Empty Map | 0 | - | 5.00 | 618,332 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,586 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,485 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,824 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,751 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,759 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,787 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,765 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,420 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,519 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,177 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,299 |
| Biggest Cities in History | 0 | - | 4.52 | 89,064 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,095 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,954 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,164 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,388 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,744 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,165 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,966 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,736 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,478 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,990 |
| Biggest Cities in France | 0 | - | 4.69 | 221,880 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,718 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,612 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,413 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,084 |
| Biggest Cities in China | 0 | - | 4.53 | 156,873 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,752 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,937 |
| Biggest Cities in India | 0 | - | 4.70 | 67,291 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,314 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,687 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,435 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,906 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,532 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,832 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,073 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,932 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,251 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,511 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,800 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,574 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,968 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,519 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,808 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,097 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,097 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,198 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,793 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,318 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,492 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,241 |
| Biggest Cities in California | 0 | - | 4.35 | 139,168 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,743 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,375 |
