| Biggest Cities in the World | 0 | - | 4.91 | 795,742 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,357 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,716 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,824 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,741 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,429 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,240 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,100 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,323 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,569 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,677 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,146 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,268 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,678 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,047 |
| Biggest Cities in the United States | 0 | - | 4.93 | 974,417 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,297 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,903 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,827 |
| Largest City by Island | 0 | - | 4.87 | 71,570 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,701 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,538 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,150 |
| Megacities on a World Map | 0 | - | 4.98 | 252,893 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,469 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,140 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,588 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,994 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,969 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,594 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,439 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,828 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,319 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,925 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,704 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,754 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,355 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,611 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,377 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,717 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,338 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,030 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,893 |
| Biggest City by Region | 0 | - | 4.50 | 36,101 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,035 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,137 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,309 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,142 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,343 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,546 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,774 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,922 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,965 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,001 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,150 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,469 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,343 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,971 |
| Biggest Cities in Europe | 0 | - | 4.72 | 544,922 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,198 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,979 |
| Biggest Cities in History | 0 | - | 4.52 | 89,953 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,256 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,886 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,469 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,330 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,405 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,359 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,773 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,039 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,401 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,121 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,447 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,032 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,793 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,982 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,019 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,743 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,524 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,491 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,724 |
| Countries with Megacities | 0 | - | 4.99 | 249,852 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,559 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,809 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,877 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,802 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,465 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,878 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,103 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,145 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,436 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,093 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,413 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,345 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,216 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 54,510 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,470 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,847 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,903 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,421 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,118 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,937 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,284 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,984 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,588 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,442 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,211 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,557 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,199 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,265 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,825 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,600 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,638 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,114 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,262 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,199 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,799 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,935 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,575 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,117 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,975 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,773 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,197 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,500 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,429 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,939 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,754 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,884 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,759 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,321 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,795 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,859 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,252 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,448 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,091 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,602 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,894 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,077 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,769 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,764 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,948 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,708 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,443 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,783 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,418 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,985 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,140 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,870 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,263 |
| Biggest Cities in France | 0 | - | 4.70 | 223,420 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,719 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,865 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,743 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,015 |
| Biggest Cities in China | 0 | - | 4.52 | 158,078 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,590 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,136 |
| Biggest Cities in India | 0 | - | 4.63 | 67,607 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,574 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,929 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,152 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,375 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,429 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,595 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,417 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,352 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,566 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,066 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,620 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,029 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,017 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,120 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,113 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,380 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,009 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,693 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,801 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,310 |
| Boundary Waters | 0 | - | 4.92 | 88,338 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,050 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,824 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,062 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,284 |
| Most Populous Islands | 0 | - | 4.80 | 122,732 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,265 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,484 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,220 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,314 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,831 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,520 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,742 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,121 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,966 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.64 | 64,090 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,601 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,263 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,532 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,206 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,091 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,130 |
