| All 1M Cities by Proximity | 0 | - | 5.00 | 523,596 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,960 |
| Biggest Cities in the World | 0 | - | 4.90 | 703,652 |
| Biggest City by Time Zone | 0 | - | 4.85 | 56,082 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,584 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,533 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,400 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,793 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,923 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,489 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 378,666 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 67,030 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 43,032 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,958 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 47,029 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,831 |
| Biggest Cities in the United States | 0 | - | 4.93 | 849,990 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 338,895 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,267 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,564 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,398 |
| Most Populous World Capitals | 0 | - | 4.93 | 162,508 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,629 |
| Megacities on a World Map | 0 | - | 4.98 | 223,858 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,781 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 92,200 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,792 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,830 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,346 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,494 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,864 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 43,124 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,665 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,539 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 68,665 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,518 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,817 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 310,202 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,485 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,316 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 43,399 |
| Biggest City by Region | 0 | - | 4.50 | 34,074 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 54,077 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,722 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,804 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 105,259 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,695 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 78,079 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 70,990 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.87 | 101,308 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,886 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,460 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,951 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,664 |
| Biggest Cities in Europe | 0 | - | 4.75 | 490,185 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,696 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,740 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,649 |
| Biggest Cities in Germany | 0 | - | 4.95 | 268,298 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 137,562 |
| Biggest City by Island | 0 | - | 4.57 | 46,138 |
| Biggest Cities in History | 0 | - | 4.50 | 81,947 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,592 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,499 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 65,192 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 114,196 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 108,465 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 99,399 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 112,393 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 131,095 |
| Biggest Cities Starting With P | 0 | - | 4.48 | 116,472 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,692 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,267 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,153 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,401 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,451 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,237 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,632 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,882 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,542 |
| Largest Nordic Cities on a Map | 0 | - | 4.82 | 30,884 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,706 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,220 |
| Countries with Megacities | 0 | - | 4.99 | 202,092 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,595 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,071 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,403 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,001 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,380 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,668 |
| Biggest Mediterranean Cities | 0 | - | 4.58 | 87,313 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,656 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,329,956 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,616 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,598 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 83,248 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,983 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 150,566 |
| Biggest Cities Starting With C | 0 | - | 4.08 | 98,162 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 80,079 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 116,716 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,990 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,759 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 61,139 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 154,909 |
| Flags to Largest Cities | 0 | - | 4.55 | 33,053 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 206,228 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,195 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,526 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,532 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,676 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,315 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,370 |
| Countries by Population Range - Tile Select | 0 | - | 4.84 | 51,402 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,400 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,363 |
| Largest World Cities With Four Letters | 0 | - | 4.38 | 43,610 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 63,266 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,875 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,429 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,370 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,537 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,708 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,586 |
| Most Populous Countries by Year | 0 | - | 4.81 | 95,925 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 67,708 |
| Demographics Multiple Choice | 0 | - | 4.66 | 40,229 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,417 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 98,500 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 84,908 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 95,170 |
| Densest Countries Bordering Each Other | 0 | - | 4.94 | 73,073 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,598 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 78,984 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 62,108 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.47 | 46,861 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 29,253 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 37,250 |
| Cities in Squares on a Map - North America | 0 | - | 4.32 | 19,761 |
| Biggest Cities in Japan | 0 | - | 4.66 | 76,730 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,678 |
| Biggest Cities in France | 0 | - | 4.71 | 203,458 |
| Biggest Cities in Spain | 0 | - | 4.55 | 156,456 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 51,242 |
| Biggest Cities in Poland | 0 | - | 4.57 | 49,127 |
| Biggest Cities in the UK | 0 | - | 4.46 | 95,259 |
| Biggest Cities in China | 0 | - | 4.55 | 141,960 |
| Cities of Ireland | 0 | - | 4.49 | 46,479 |
| Biggest Cities in Canada | 0 | - | 4.66 | 122,542 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 44,156 |
| Biggest Cities in India | 0 | - | 4.71 | 63,358 |
| Biggest Cities in Italy | 0 | - | 4.69 | 221,659 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 89,588 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 75,528 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.30 | 83,943 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 89,571 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 71,277 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,887 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 61,163 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,481 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,839 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 207,957 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 111,003 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,403 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 77,058 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 54,294 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 67,691 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 88,261 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 154,816 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 148,474 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,896 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,265 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,684 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 49,231 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 35,009 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 67,008 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 41,866 |
| Most Populous Islands | 0 | - | 4.71 | 114,383 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,553 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 209,735 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 164,312 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,672 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 82,486 |
| Countries by Population Decrease | 0 | - | 4.43 | 47,034 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,797 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 148,100 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 50,464 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,671 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.88 | 15,853 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,944 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.36 | 30,376 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 21,229 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 23,008 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,565 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 163,628 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 85,567 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 67,761 |
| Countries Closest to Africa | 0 | - | 4.95 | 146,736 |
| Boundary Waters | 0 | - | 4.93 | 82,071 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,516 |
