| Biggest Cities in the World | 0 | - | 4.91 | 806,226 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,012 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,061 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,870 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,599 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,550 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,254 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,861 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,312 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,883 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,026 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,672 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,776 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,256 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,466 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,545 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,996 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,238 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,679 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,753 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,457 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,752 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,194 |
| Megacities on a World Map | 0 | - | 4.98 | 257,175 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,365 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,800 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,751 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,603 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,750 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,018 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,047 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,250 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,453 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,283 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,553 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,333 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,996 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,902 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,803 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,594 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,148 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,671 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,171 |
| Biggest City by Region | 0 | - | 4.50 | 36,404 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,353 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,130 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,107 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,414 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,317 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,452 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,582 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,789 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,515 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,313 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,970 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,584 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,059 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,087 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,428 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,562 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,633 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,502 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,415 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,805 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,968 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,935 |
| Biggest Cities in History | 0 | - | 4.52 | 90,639 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,110 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,619 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,718 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,186 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,198 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,009 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,625 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,146 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,792 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,190 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,144 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,927 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,932 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,537 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,643 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,482 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,181 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,052 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,315 |
| Countries with Megacities | 0 | - | 4.99 | 267,451 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,983 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,227 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,312 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,332 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,801 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,510 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,423 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,970 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,699 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,047 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,109 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,995 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,865 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,838 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,525 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,405 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,876 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,172 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,004 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,398 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,866 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,647 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,581 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,251 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,506 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,395 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,355 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,731 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,947 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,288 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,672 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,500 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,595 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,590 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,178 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,090 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,362 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,182 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,015 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,128 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,548 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,217 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,332 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,501 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,037 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,395 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,941 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,453 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,750 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,805 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,957 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,220 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,009 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,929 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,406 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,085 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,755 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,654 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,594 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,417 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,384 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,021 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,544 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,789 |
| Biggest Cities in France | 0 | - | 4.70 | 225,452 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,269 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,303 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,310 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,899 |
| Biggest Cities in China | 0 | - | 4.53 | 160,019 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,574 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,483 |
| Biggest Cities in India | 0 | - | 4.64 | 68,087 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,549 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,605 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,828 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,869 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,911 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,947 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,700 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,709 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,929 |
| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 139,638 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,898 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,947 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,565 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,231 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,542 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,887 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,805 |
| African Island Countries | 0 | - | 4.96 | 102,622 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,730 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,015 |
| Islands by Country #1 | 0 | - | 4.90 | 176,424 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,493 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,567 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,929 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,462 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,597 |
| Most Populous Islands | 0 | - | 4.80 | 123,383 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,391 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,658 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,725 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,278 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,097 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,979 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,996 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,925 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,957 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,026 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,513 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,612 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,838 |
