| Biggest Cities in the World | 0 | - | 4.91 | 797,777 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,762 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,313 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,686 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,159 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,428 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,662 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,388 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,721 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 57,147 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,935 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,055 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,530 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,109 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,004 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,152 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,865 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,366 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,243 |
| Largest City by Island | 0 | - | 4.87 | 71,783 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,880 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,822 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,368 |
| Megacities on a World Map | 0 | - | 4.98 | 254,101 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,631 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,292 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,840 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,456 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,224 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,045 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,813 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,965 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,215 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,265 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,895 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,865 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,487 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,135 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,655 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,159 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,491 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,068 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,950 |
| Biggest City by Region | 0 | - | 4.50 | 36,173 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,103 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,172 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,341 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,218 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,394 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,819 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,041 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,162 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,172 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,270 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,325 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,695 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,670 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,134 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,984 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,666 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,491 |
| Biggest Cities in History | 0 | - | 4.52 | 90,084 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,961 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,022 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,877 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,382 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,615 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,433 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,237 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,234 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,549 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,316 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,634 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,256 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,997 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,026 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,048 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,790 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,544 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,574 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,251 |
| Countries with Megacities | 0 | - | 4.99 | 262,389 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,085 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,113 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,388 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,165 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,830 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,998 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,175 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,536 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,514 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,482 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,025 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,444 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,276 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,615 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,524 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,904 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,918 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,635 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,242 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,038 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,470 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,155 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,826 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,638 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,598 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,790 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,338 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,460 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,011 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,707 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,719 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,214 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,488 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,325 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,970 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,084 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,902 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 62,772 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,998 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,828 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,240 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,604 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,458 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,972 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,905 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,941 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,798 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,365 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,867 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,521 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,502 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,548 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,336 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,810 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,077 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,239 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,862 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,804 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,056 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,791 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,512 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,934 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,455 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,051 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,260 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,011 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,365 |
| Biggest Cities in France | 0 | - | 4.70 | 223,834 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,013 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,950 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,840 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,156 |
| Biggest Cities in China | 0 | - | 4.53 | 158,417 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,778 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,187 |
| Biggest Cities in India | 0 | - | 4.63 | 67,709 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,935 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,065 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,283 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,473 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,537 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,667 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,474 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,429 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,648 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,178 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,868 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,184 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,141 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,644 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,216 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,496 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,167 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,874 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,023 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,414 |
| Boundary Waters | 0 | - | 4.92 | 88,427 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,125 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,003 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,330 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,409 |
| Most Populous Islands | 0 | - | 4.80 | 122,869 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,290 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,520 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,700 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,707 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,182 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,745 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,788 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,388 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,152 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,182 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,846 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,360 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,579 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,290 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,160 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,206 |
