| Biggest Cities in the World | 0 | - | 4.91 | 795,044 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,289 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,597 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,611 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,624 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,169 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,162 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,046 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,240 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,526 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,617 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,112 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,203 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,510 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,781 |
| Biggest Cities in the United States | 0 | - | 4.93 | 973,429 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,096 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,758 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,706 |
| Largest City by Island | 0 | - | 4.87 | 71,514 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,658 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,463 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,083 |
| Megacities on a World Map | 0 | - | 4.98 | 252,639 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,030 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,089 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,513 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,847 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,889 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,537 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,324 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,791 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,023 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,767 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,649 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,732 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,334 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,431 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,282 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,567 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,291 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,014 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,873 |
| Biggest City by Region | 0 | - | 4.50 | 36,087 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,021 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,127 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,303 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,119 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,332 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,435 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,676 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,849 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,907 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,913 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,104 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,403 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,253 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,931 |
| Biggest Cities in Europe | 0 | - | 4.72 | 544,490 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,745 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,919 |
| Biggest Cities in History | 0 | - | 4.52 | 89,902 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,245 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,860 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,332 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,312 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,321 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,343 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,607 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,962 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,340 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,052 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,383 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,946 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,611 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,965 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,013 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,733 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,518 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,457 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,553 |
| Countries with Megacities | 0 | - | 4.99 | 249,534 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,401 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,712 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,737 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,676 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,312 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,818 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,079 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,010 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,403 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,229 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,191 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,302 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,196 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,420 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,446 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,837 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,886 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,331 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,062 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,895 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,207 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,902 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,515 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,380 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,096 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,468 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,159 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,203 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,749 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,573 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,622 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,085 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,173 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,140 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,718 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,866 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,452 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,062 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,965 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,754 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,183 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,465 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,417 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,929 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,701 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,867 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,740 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,301 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,773 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,646 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,104 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,394 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,998 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,522 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,834 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,007 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,704 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,753 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,928 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,692 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,418 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,740 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,400 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,968 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,104 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,830 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,232 |
| Biggest Cities in France | 0 | - | 4.70 | 223,281 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,616 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,840 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,709 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,957 |
| Biggest Cities in China | 0 | - | 4.52 | 157,918 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,529 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,115 |
| Biggest Cities in India | 0 | - | 4.70 | 67,574 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,454 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,857 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,983 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,311 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,373 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,546 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,383 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,308 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,531 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,040 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,170 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,946 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,950 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 91,447 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,048 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,326 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,928 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,621 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,718 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,282 |
| Boundary Waters | 0 | - | 4.92 | 88,306 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,025 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,742 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,957 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,214 |
| Most Populous Islands | 0 | - | 4.80 | 122,683 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,257 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,478 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,044 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,013 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,680 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,465 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,722 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,082 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,897 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,061 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,535 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,227 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,521 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,187 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,074 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,100 |
