| Biggest Cities in the World | 0 | - | 4.91 | 748,321 |
| Biggest City by Time Zone | 0 | - | 4.86 | 61,370 |
| Biggest City in Every Country | 0 | - | 4.98 | 89,753 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 188,277 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 101,777 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 110,156 |
| Biggest Cities with Exceptions | 0 | - | 4.89 | 72,946 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 78,780 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 72,689 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 45,375 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 65,202 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 48,994 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 61,930 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 397,590 |
| Biggest Cities in the United States | 0 | - | 4.94 | 910,777 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 351,754 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 114,771 |
| Biggest Cities by Language | 0 | - | 4.95 | 223,690 |
| Largest City by Island | 0 | - | 4.89 | 66,577 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 67,721 |
| Most Populous World Capitals | 0 | - | 4.93 | 169,310 |
| Biggest European Cities by Century | 0 | - | 4.98 | 125,215 |
| Megacities on a World Map | 0 | - | 4.98 | 232,662 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 549,344 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 64,051 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 69,518 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 99,663 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 160,330 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 161,854 |
| Biggest Cities in Asia | 0 | - | 4.94 | 103,775 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 47,232 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 325,690 |
| Megacities on an Empty Map | 0 | - | 4.95 | 93,210 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 46,933 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 66,583 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 70,948 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 212,861 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 128,938 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 107,522 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 100,187 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,267 |
| Biggest City by Region | 0 | - | 4.49 | 35,014 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 55,655 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,175 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,507 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 80,954 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,427 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 146,677 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 117,514 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 152,525 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 41,627 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 111,151 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 75,234 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 35,257 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.88 | 108,381 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.83 | 57,873 |
| Biggest Cities in Europe | 0 | - | 4.74 | 517,720 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 140,446 |
| Biggest Cities in History | 0 | - | 4.50 | 85,338 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 70,464 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 53,837 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 97,910 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 41,987 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 51,111 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 34,009 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 66,805 |
| Biggest Cities in Germany | 0 | - | 4.95 | 279,962 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 118,803 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 112,134 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 104,185 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 117,204 |
| Biggest Cities Starting With M | 0 | - | 4.49 | 136,827 |
| Biggest Cities Starting With P | 0 | - | 4.48 | 121,407 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 71,922 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 40,013 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,552 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,015 |
| Biggest Cities by Latitude | 0 | - | 4.77 | 27,002 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,987 |
| Countries with Megacities | 0 | - | 4.99 | 218,232 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,847 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,298 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,743 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,294 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 270,047 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.83 | 84,143 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 39,504 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 88,762 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 44,609 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,382,050 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 364,932 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.75 | 71,491 |
| Biggest Mediterranean Cities | 0 | - | 4.56 | 89,086 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 39,561 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,043 |
| Biggest Cities in the World - 2100 | 0 | - | 4.23 | 88,279 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,401 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 156,552 |
| Biggest Cities Starting With C | 0 | - | 4.09 | 101,393 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 83,469 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 121,411 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 123,014 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 122,710 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 81,930 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,507 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 116,006 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,838 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 88,232 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 104,252 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 62,964 |
| Biggest English Cities by Century | 0 | - | 4.89 | 103,281 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 160,272 |
| Biggest Cities by Trait #2 | 0 | - | 4.40 | 14,840 |
| Flags to Largest Cities | 0 | - | 4.54 | 35,833 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.42 | 104,556 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.41 | 88,944 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 214,077 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 44,525 |
| Most Populous Country by First Two Letters | 0 | - | 4.73 | 69,445 |
| Demographics Multiple Choice | 0 | - | 4.68 | 41,242 |
| Biggest European Cities by Letter | 0 | - | 4.62 | 123,147 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.55 | 64,469 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,154 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 80,269 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 42,470 |
| Biggest "Saint" Cities - United States | 0 | - | 4.45 | 35,638 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 39,132 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 35,761 |
| Countries of Europe by Population | 0 | - | 4.98 | 163,612 |
| Most Populous Countries by Year | 0 | - | 4.81 | 102,771 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 81,724 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 103,524 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 100,867 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 107,448 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 84,971 |
| Jewish Cities Quiz | 0 | - | 4.32 | 60,662 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 70,944 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 49,489 |
| Biggest Cities Near a Border | 0 | - | 4.19 | 30,730 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 40,475 |
| Cities in Squares on a Map - North America | 0 | - | 4.32 | 20,562 |
| Biggest Urban Areas in the UK | 0 | - | 4.41 | 172,457 |
| Biggest Cities in Japan | 0 | - | 4.68 | 80,119 |
| Biggest Cities in Russia | 0 | - | 4.48 | 79,989 |
| Biggest Cities in France | 0 | - | 4.70 | 213,040 |
| Biggest Cities in Spain | 0 | - | 4.63 | 163,499 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 53,705 |
| Biggest Cities in Poland | 0 | - | 4.57 | 51,378 |
| Biggest Cities in the UK | 0 | - | 4.47 | 99,951 |
| Biggest Cities in China | 0 | - | 4.47 | 149,723 |
| Cities of Ireland | 0 | - | 4.50 | 48,676 |
| Biggest Cities in Canada | 0 | - | 4.56 | 127,422 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 45,643 |
| Biggest Cities in India | 0 | - | 4.71 | 65,413 |
| Biggest Cities in Italy | 0 | - | 4.70 | 230,857 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.34 | 97,049 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.14 | 102,511 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 81,919 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.18 | 77,147 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.01 | 59,722 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 70,861 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.32 | 72,077 |
| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 135,706 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 214,619 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 130,176 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 72,650 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 80,655 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 64,517 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 70,478 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 92,636 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 159,647 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 163,707 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 81,649 |
| Boundary Waters | 0 | - | 4.93 | 85,396 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 32,968 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 91,297 |
| Most Populous Islands | 0 | - | 4.77 | 118,567 |
| Islands by Largest City #1 | 0 | - | 4.47 | 93,566 |
| Islands by Largest City #2 | 0 | - | 4.78 | 33,982 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 220,392 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 173,075 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 170,234 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 98,780 |
| Countries by Population Decrease | 0 | - | 4.46 | 48,484 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 104,880 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 153,664 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.61 | 61,909 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 69,071 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 19,743 |
| Biggest Nordic Cities | 0 | - | 4.38 | 60,675 |
| U.S. Cities by Hispanic Population | 0 | - | 4.30 | 36,035 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 58,579 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 77,258 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.37 | 31,197 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.74 | 43,168 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.51 | 22,391 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 51,001 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 37,112 |
| All Cities in China with Population of 1 Million | 0 | - | 4.78 | 42,700 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,573 |
