| Biggest Cities in the World | 0 | - | 4.91 | 799,114 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,983 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,607 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,146 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,391 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,981 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,859 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,550 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,961 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,076 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,555 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,668 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,428 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,773 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,696 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,232 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,577 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,448 |
| Largest City by Island | 0 | - | 4.87 | 71,892 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,021 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,987 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,554 |
| Megacities on a World Map | 0 | - | 4.98 | 254,653 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,336 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,363 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,966 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,725 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,414 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,279 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,037 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,107 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,844 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,442 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,014 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,920 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,544 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,423 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,838 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,387 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,592 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,091 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,996 |
| Biggest City by Region | 0 | - | 4.50 | 36,229 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,146 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,192 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,355 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,276 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,421 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,114 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,211 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,344 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,330 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,464 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 81,668 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,835 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,909 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,271 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,486 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,448 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,609 |
| Biggest Cities in History | 0 | - | 4.52 | 90,170 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,565 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,157 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,152 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,419 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,750 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,472 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,549 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,375 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,671 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,451 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,019 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,423 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,141 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,056 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,066 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,825 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,555 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,633 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,520 |
| Countries with Megacities | 0 | - | 4.99 | 263,557 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,365 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,284 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,646 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,319 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,061 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,095 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,209 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,787 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,566 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,007 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,413 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,501 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,304 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,254 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,575 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,950 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,932 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,787 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,337 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,140 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,614 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,290 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,674 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,909 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,735 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,845 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,931 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,407 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,561 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,093 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,777 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,757 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,317 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,623 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,404 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,093 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,158 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,088 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,768 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,028 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,866 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,259 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,669 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,473 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,991 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 88,693 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,981 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,840 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,406 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,921 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,877 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,652 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,620 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,471 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,917 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,178 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,329 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,904 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,822 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,106 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,837 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,560 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,014 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,470 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,100 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,197 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,327 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,119 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,436 |
| Biggest Cities in France | 0 | - | 4.70 | 224,042 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,187 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,005 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,915 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,274 |
| Biggest Cities in China | 0 | - | 4.53 | 158,648 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,888 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,225 |
| Biggest Cities in India | 0 | - | 4.64 | 67,763 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,129 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,142 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,365 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,523 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,587 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,712 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,507 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,471 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,690 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,265 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,026 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,309 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,206 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,768 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,265 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,552 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,270 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,996 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,148 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,517 |
| Boundary Waters | 0 | - | 4.92 | 88,479 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,175 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,112 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,482 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,478 |
| Most Populous Islands | 0 | - | 4.80 | 122,942 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,303 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,536 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,940 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,888 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,366 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,848 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,826 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,446 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,307 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,229 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,976 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,430 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,593 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,334 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,205 |
