| Biggest Cities in the World | 0 | - | 4.91 | 804,955 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,873 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,855 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,213 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,378 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,702 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,710 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,194 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,377 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,898 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,571 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,649 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,162 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,333 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,181 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,200 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,856 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,505 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,568 |
| Largest City by Island | 0 | - | 4.87 | 72,401 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,391 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,630 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,092 |
| Megacities on a World Map | 0 | - | 4.98 | 256,695 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,605 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,731 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,597 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,114 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,583 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,406 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,932 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,056 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,395 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,123 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,473 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,286 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,953 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,614 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,630 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,355 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,191 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,054 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,638 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,138 |
| Biggest City by Region | 0 | - | 4.50 | 36,379 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,320 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,633 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,003 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,954 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,211 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,300 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,434 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,528 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,423 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,393 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,073 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,863 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,558 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,897 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,925 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,865 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,492 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,334 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,372 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,050 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,761 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,924 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,757 |
| Biggest Cities in History | 0 | - | 4.52 | 90,551 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,921 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,597 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,678 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,099 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,137 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,920 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,536 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,034 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,679 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,169 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,133 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,906 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,881 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,259 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,516 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,433 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,929 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,977 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,990 |
| Countries with Megacities | 0 | - | 4.99 | 266,791 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,688 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,023 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,996 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,143 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,743 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,466 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,107 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,231 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,254 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,972 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,083 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,983 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,748 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,768 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,474 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,303 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,792 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,818 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,119 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,958 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,264 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,783 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,531 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,493 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,050 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,392 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,275 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,919 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,594 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,859 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,159 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,552 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,000 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,566 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,482 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,098 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,076 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,078 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,155 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,993 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,105 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,519 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,161 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,748 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,323 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,003 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,376 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,880 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,265 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,599 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,700 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,836 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,168 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,980 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,859 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,323 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,038 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,728 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,548 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,578 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,358 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,358 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,680 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,466 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,733 |
| Biggest Cities in France | 0 | - | 4.70 | 225,195 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,070 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,258 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,251 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,765 |
| Biggest Cities in China | 0 | - | 4.53 | 159,758 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,440 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,436 |
| Biggest Cities in India | 0 | - | 4.64 | 68,033 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,265 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,512 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,737 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,798 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,848 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,898 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,663 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,666 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,884 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,573 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,725 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,834 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,485 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,149 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,488 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,840 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,718 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,583 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,847 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,451 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,505 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,917 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,399 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,547 |
| Most Populous Islands | 0 | - | 4.80 | 123,275 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,376 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,637 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,278 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,918 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,603 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,802 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,967 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,807 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,934 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,460 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,511 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,771 |
