| Biggest Cities in the World | 0 | - | 4.91 | 807,657 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,179 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,327 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,034 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,042 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,782 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,863 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,028 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,452 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,444 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,169 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,772 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,909 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,362 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,622 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,882 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,995 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,703 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,863 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,948 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,538 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,946 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,306 |
| Megacities on a World Map | 0 | - | 4.98 | 257,694 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,616 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,891 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,894 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,943 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,939 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,674 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,420 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,462 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,511 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,429 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,666 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,394 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,056 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,248 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 138,014 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,819 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,247 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,693 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,192 |
| Biggest City by Region | 0 | - | 4.50 | 36,433 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,393 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,306 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,254 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,640 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,338 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,472 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,643 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,087 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,679 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,543 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,103 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,616 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,248 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,286 |
| Biggest Cities in Europe | 0 | - | 4.70 | 550,046 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,644 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,938 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,659 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,819 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,855 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,155 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,128 |
| Biggest Cities in History | 0 | - | 4.52 | 90,750 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,272 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,663 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,756 |
| Biggest Cities Starting With A | 0 | - | 4.63 | 125,338 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,317 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,150 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,769 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,524 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,948 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,214 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,159 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,939 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,996 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,818 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,767 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,537 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,519 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,130 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,695 |
| Countries with Megacities | 0 | - | 4.99 | 268,250 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,321 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,428 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,675 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,553 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,864 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,566 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,812 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,457,026 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,262 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,132 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,134 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,011 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 164,022 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,943 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,631 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,543 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 129,006 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,253 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,049 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,551 |
| Flags to Largest Cities | 0 | - | 4.54 | 52,045 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,750 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,693 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 224,510 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,641 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,525 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,643 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,906 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,281 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,443 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,778 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,588 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,628 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,689 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,261 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,118 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,656 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,222 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,044 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,154 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,573 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,261 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,869 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,748 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,079 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,430 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,007 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,661 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,940 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,962 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,125 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,298 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,040 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 85,018 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,452 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,135 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,798 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,779 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,602 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,480 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,419 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,138 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,634 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,869 |
| Biggest Cities in France | 0 | - | 4.72 | 225,753 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,455 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,385 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,384 |
| Biggest Cities in the UK | 0 | - | 4.48 | 106,023 |
| Biggest Cities in China | 0 | - | 4.53 | 160,316 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,732 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,532 |
| Biggest Cities in India | 0 | - | 4.64 | 68,150 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,855 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,702 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,911 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,936 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,984 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,992 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,740 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,765 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,981 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,726 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,138 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,081 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,654 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,336 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,598 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,965 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,926 |
| African Island Countries | 0 | - | 4.96 | 102,817 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,904 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,489 |
| Islands by Country #1 | 0 | - | 4.90 | 176,931 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,558 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,628 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,958 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,532 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,661 |
| Most Populous Islands | 0 | - | 4.80 | 123,492 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,414 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,692 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,066 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,585 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,438 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,166 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,044 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,016 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,972 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,197 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,567 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,775 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,961 |
