| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,274 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,926 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,642 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,367 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,035 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,395 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,704 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,540 |
| Biggest Cities in the World | 0 | - | 4.92 | 802,759 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,729 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,023 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,210 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,553 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,455 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,498 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,051 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,204 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,426 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,978 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,483 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,607 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,376 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,452 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 64,978 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,102 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,598 |
| Biggest Cities in the United States | 0 | - | 4.94 | 983,239 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,237 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,066 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,277 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,268 |
| Largest City by Island | 0 | - | 4.87 | 72,203 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,395 |
| Megacities on a World Map | 0 | - | 4.98 | 255,914 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,420 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,611 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,372 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,580 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,953 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,628 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,656 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,812 |
| Biggest Cities in History | 0 | - | 4.52 | 90,400 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,591 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,488 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,598 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,616 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,290 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,903 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,315 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,329 |
| Countries with Megacities | 0 | - | 4.99 | 265,550 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,125 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,691 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,388 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,761 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,190 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,851 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,137 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,329 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,982 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,468 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,510 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,880 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,596 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,084 |
| Biggest City by Region | 0 | - | 4.50 | 36,318 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,235 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,749 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,720 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,911 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,261 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,401 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,430 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,710 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,210 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,749 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,665 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,497 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,069 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,510 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,357 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,684 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,904 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,355 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,939 |
| Most Populous Countries in 1800 | 0 | - | 4.33 | 42,175 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,413 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,391 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,862 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,533 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,140 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,545 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,446 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,696 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,647 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,889 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,699 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,298 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,755 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,429 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,079 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,948 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,330 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,778 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,947 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,347 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,479 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,623 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,052 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,117 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,110 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,877 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,589 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,783 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,838 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,369 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,347 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,508 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,739 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,954 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 115,077 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,458 |
| Former Capitals | 0 | - | 4.88 | 71,580 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,925 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,370 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,565 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,194 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,647 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,409 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,466 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,843 |
| Most Populous Islands | 0 | - | 4.80 | 123,141 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,343 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,596 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,785 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,581 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,212 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,584 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,917 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,693 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,702 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,374 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,277 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,626 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,991 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,891 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,572 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,036 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,973 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,030 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,640 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,966 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,667 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,133 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,526 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,310 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,073 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,562 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,775 |
| Boundary Waters | 0 | - | 4.92 | 88,648 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,320 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,428 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,977 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,751 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,679 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,939 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,467 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,954 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,876 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,533 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,307 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,050 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,299 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,090 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,937 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,078 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,476 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,317 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 17,925 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,090 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,693,175 |
| Landlocked Countries | 0 | - | 4.99 | 423,345 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,655 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,905 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,745 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,238 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,959 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,669 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,409 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,531 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,267 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,297 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,545 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,336 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,631 |
| Biggest Cities in France | 0 | - | 4.70 | 224,757 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,737 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,156 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,132 |
