| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,183 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,393 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,640 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,685 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,376 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,474 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,610 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,169 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,527 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,760 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,246 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,671 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,339 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,501 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,713 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,328 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,393 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,171 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,672 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,595 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,156 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,644 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,586 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,052 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,558 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,533 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,670 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,758 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,790 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,398 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,448 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,182 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,485 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,985 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,096 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,679 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,610 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,419 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,302 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,144 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,286 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,751 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,778 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,457 |
| Largest City by Island | 0 | - | 4.87 | 70,984 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,325 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,453 |
| Biggest European Cities by Century | 0 | - | 4.98 | 140,843 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,628 |
| Megacities on a World Map | 0 | - | 4.98 | 250,672 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,099 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,835 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,739 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,792 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,777 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,563 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,050 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,065 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,968 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,196 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,926 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,932 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,023 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,578 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,898 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,405 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,265 |
| US States Quiz | 0 | - | 5.00 | 16,686,329 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,507 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,874 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,301 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,082 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,008 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,834 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,757 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,141 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,560 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,501 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,064 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,171 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,633 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,578 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,222 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,707 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,460 |
| States of Mexico | 0 | - | 4.95 | 173,169 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,685 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,034 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,375 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,937 |
| Countries with Megacities | 0 | - | 4.99 | 246,374 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,862 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,769 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,316 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,713 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,351 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,772 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,279 |
| Pixelated United States Map | 0 | - | 4.89 | 93,399 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,628 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,276 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,325 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,552 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,818 |
| U.S. States By Population | 0 | - | 4.92 | 152,292 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,308 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,801 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,478 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,728 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,816 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,855 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,888 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,193 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,663 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,298 |
| Biggest City by Region | 0 | - | 4.50 | 35,981 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,881 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,842 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,001 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,210 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,896 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,242 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,520 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,964 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,767 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,976 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,460 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,840 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,319 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,441 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,014 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,780 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,890 |
| US States with an Empty Map | 0 | - | 5.00 | 618,365 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,602 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,489 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,832 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,754 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,765 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,789 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,766 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,425 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,527 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,184 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,309 |
| Biggest Cities in History | 0 | - | 4.52 | 89,074 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,095 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,960 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,731 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,443 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,212 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,165 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,392 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,747 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,168 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,910 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,740 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,484 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,993 |
| Biggest Cities in France | 0 | - | 4.69 | 221,896 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,722 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,614 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,416 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,087 |
| Biggest Cities in China | 0 | - | 4.53 | 156,878 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,938 |
| Biggest Cities in India | 0 | - | 4.70 | 67,298 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,323 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,439 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,913 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,539 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,842 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,080 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,936 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,252 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,516 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,803 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,581 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,969 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,519 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,826 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,104 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,100 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,212 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,811 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,328 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,506 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,244 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,357 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,207 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,200 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,551 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,513 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,741 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,142 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,040 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,039 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,008 |
| Belize Country Quiz | 0 | - | 4.85 | 20,787 |
| Flags of North and South America | 0 | - | 4.99 | 366,226 |
