| Biggest Cities in the World | 0 | - | 4.92 | 803,503 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,682 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,580 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,752 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,180 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,954 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,531 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,062 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,712 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,457 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,522 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,047 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,172 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,804 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,771 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,353 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,458 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,362 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,386 |
| Largest City by Island | 0 | - | 4.87 | 72,262 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,314 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,482 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,980 |
| Megacities on a World Map | 0 | - | 4.98 | 256,166 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,774 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,650 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,455 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,750 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,396 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,815 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,867 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,328 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,787 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,000 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,383 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,229 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,888 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,297 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,439 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,115 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,949 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,609 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,102 |
| Biggest City by Region | 0 | - | 4.50 | 36,336 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,262 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,414 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,468 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,519 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,723 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,739 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,831 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,800 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,027 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,976 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,270 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,837 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,732 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,265 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,310 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,539 |
| Biggest Cities in History | 0 | - | 4.52 | 90,448 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,710 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,421 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,011 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,548 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,214 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,624 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,665 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,722 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,972 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,029 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,821 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,401 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,874 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,538 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,133 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,119 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,889 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 31,397 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,815 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,460 |
| Countries with Megacities | 0 | - | 4.99 | 265,907 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,255 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,757 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,511 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,859 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,952 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,424 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,377 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,653 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,863 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,365 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,755 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,685 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,429 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,678 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,051 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,974 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,587 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,685 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,394 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,180 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,665 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,787 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,272 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,124 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,624 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,442 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,736 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,988 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,409 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,039 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,911 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,612 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,104 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,699 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,415 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,400 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,781 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,375 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,002 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,088 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,966 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,348 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,922 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,542 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,052 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,591 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,118 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,955 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,490 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,114 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,314 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,139 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,817 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,039 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,430 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,553 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,695 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,093 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,922 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,268 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,987 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,683 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,452 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,545 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,299 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,315 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,580 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,376 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,668 |
| Biggest Cities in France | 0 | - | 4.70 | 224,920 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,845 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,189 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,175 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,657 |
| Biggest Cities in China | 0 | - | 4.53 | 159,517 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,304 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,391 |
| Biggest Cities in India | 0 | - | 4.64 | 67,962 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,972 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,405 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,635 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,727 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,778 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,850 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,628 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,608 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,829 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,479 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,547 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,711 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,402 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,078 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,426 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,738 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,592 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,437 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,659 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,776 |
| Boundary Waters | 0 | - | 4.92 | 88,675 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,341 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,493 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,068 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,795 |
| Most Populous Islands | 0 | - | 4.80 | 123,184 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,351 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,607 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,948 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,703 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,334 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,665 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,932 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,733 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,797 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,405 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,375 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,681 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,663 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,484 |
