| Biggest Cities in the World | 0 | - | 4.92 | 803,866 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,301 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,736 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,670 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,890 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,233 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,156 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,576 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,102 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,904 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,754 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,487 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,556 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,083 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,216 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,914 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,732 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,550 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,033 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,420 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,396 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,429 |
| Largest City by Island | 0 | - | 4.87 | 72,293 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,330 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,515 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,011 |
| Megacities on a World Map | 0 | - | 4.98 | 256,281 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,666 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,490 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,842 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,446 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,762 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,036 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,763 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,413 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,698 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,749 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,786 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,837 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,920 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,346 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,936 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,028 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,408 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,063 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,685 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,244 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,909 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,372 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,483 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,191 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,811 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,887 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,653 |
| Countries with Megacities | 0 | - | 4.99 | 266,153 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,389 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,831 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,676 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,953 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,967 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,614 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,110 |
| Biggest City by Region | 0 | - | 4.50 | 36,345 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,281 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,134 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,872 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,835 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,073 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,279 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,417 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,484 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,079 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,295 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,882 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,764 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,523 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,164 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,691 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,487 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,774 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,039 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,447 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,406 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,430 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,091 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,252 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,776 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,729 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,989 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,586 |
| Biggest Cities in History | 0 | - | 4.52 | 90,473 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,777 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,559 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,639 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,606 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,016 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,453 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,389 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,729 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,888 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 115,491 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,997 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,056 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,842 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,437 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,906 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,567 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,184 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,975 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,352 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,834 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,107 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,473 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,598 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,731 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,111 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,149 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,125 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,895 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,700 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,440 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,833 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,795 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,591 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,739 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,420 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,099 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,439 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,763 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,625 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,473 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,718 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,966 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 60,044 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,840 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,836 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,421 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,625 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,115 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,581 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,322 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,868 |
| Most Populous Islands | 0 | - | 4.80 | 123,209 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,358 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,610 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,941 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,416 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,704 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,058 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,923 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,139 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,022 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,059 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,725 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,976 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,852 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,618 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,702 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,411 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,208 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,693 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,542 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,792 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,717 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,943 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,548 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,395 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,059 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,709 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,123 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,966 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,093 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,494 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,129 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,174 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,840 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,841 |
| Boundary Waters | 0 | - | 4.92 | 88,694 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,354 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,520 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,120 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,818 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,021 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,938 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,795 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,283 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,993 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,692 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,478 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,552 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,316 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,322 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,611 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,403 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,690 |
| Biggest Cities in France | 0 | - | 4.70 | 224,977 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,899 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,200 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,194 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,674 |
