| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,320 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,995 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,725 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,409 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,090 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,432 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,748 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,604 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,685 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,827 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,103 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,288 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,716 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,643 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,822 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,209 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,058 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,562 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,081 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,838 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,731 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,470 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,539 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,067 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,193 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,861 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,562 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,521 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,161 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,380 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,409 |
| Largest City by Island | 0 | - | 4.87 | 72,282 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,504 |
| Megacities on a World Map | 0 | - | 4.98 | 256,226 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,889 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,661 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,474 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,798 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,430 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,744 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,765 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,460 |
| Biggest Cities in History | 0 | - | 4.52 | 90,459 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,740 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,863 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,632 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,900 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,336 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,014 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,394 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,503 |
| Countries with Megacities | 0 | - | 4.99 | 265,994 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,296 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,769 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,546 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,893 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,238 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,897 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,333 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,456 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,162 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,582 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,823 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,959 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,613 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,107 |
| Biggest City by Region | 0 | - | 4.50 | 36,340 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,269 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 31,967 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,855 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,818 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,050 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,473 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,027 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,284 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,863 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,753 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,522 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,141 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,650 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,465 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,746 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,010 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,421 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,340 |
| Most Populous Countries in 1800 | 0 | - | 4.33 | 42,198 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,557 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,426 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,054 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,550 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,231 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,600 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,715 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,726 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,986 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,042 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,835 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,421 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,891 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,553 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,359 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,969 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,348 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,828 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,067 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,452 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,576 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,715 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,099 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,137 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,122 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,891 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,830 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,982 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,441 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,380 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,693 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,877 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,041 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 115,455 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,566 |
| Former Capitals | 0 | - | 4.88 | 71,612 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,064 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,451 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,688 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,235 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,692 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,433 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,731 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,901 |
| Most Populous Islands | 0 | - | 4.80 | 123,199 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,353 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,608 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,985 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,727 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,369 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,679 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,940 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,741 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,814 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,411 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,406 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,694 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,052 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,915 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,618 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,120 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,990 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,054 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,712 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,975 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,810 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,603 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,695 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,405 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,195 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,679 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,791 |
| Boundary Waters | 0 | - | 4.92 | 88,689 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,345 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,505 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,092 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,809 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,707 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,012 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,584 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,012 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,934 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,545 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,385 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,055 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,652 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,120 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,959 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,090 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,491 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,355 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 17,984 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,122 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,749,862 |
| Landlocked Countries | 0 | - | 4.99 | 424,065 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,679 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,928 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,786 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,274 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,991 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,689 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,470 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,547 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,312 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,319 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,595 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,390 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,679 |
| Biggest Cities in France | 0 | - | 4.70 | 224,941 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,871 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,194 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,183 |
