| Biggest Cities in the United States | 0 | - | 4.93 | 822,978 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 334,370 |
| Biggest Cities in the World | 0 | - | 4.89 | 688,100 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,511 |
| Biggest City in Every Country | 0 | - | 4.97 | 79,005 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 170,124 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 92,240 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,480 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 65,055 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,617 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 371,727 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,369 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,429 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,808 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,421 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,104 |
| Biggest Cities by Language | 0 | - | 4.95 | 214,125 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 64,897 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,684 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,923 |
| Megacities on a World Map | 0 | - | 4.98 | 220,937 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 514,683 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,932 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,529 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,534 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,386 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 155,037 |
| Biggest Cities in Asia | 0 | - | 4.94 | 96,025 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,521 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,648 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,804 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,813 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,924 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 199,468 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,429 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 304,494 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,677 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,570 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,094 |
| Biggest City by Region | 0 | - | 4.49 | 33,683 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,428 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.94 | 133,999 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.83 | 44,008 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 92,062 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,388 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,753 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,590 |
| 500 Biggest US Cities | 0 | - | 4.87 | 98,365 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,475 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,053 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,347 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,923 |
| Biggest Cities in Europe | 0 | - | 4.75 | 465,589 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 50,982 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 91,158 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,914 |
| Biggest Cities in Germany | 0 | - | 4.95 | 263,418 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,289 |
| Biggest City by Island | 0 | - | 4.57 | 45,790 |
| Biggest Cities in History | 0 | - | 4.50 | 80,329 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,003 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.49 | 40,163 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,176 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,627 |
| Biggest Cities Starting With A | 0 | - | 4.56 | 112,306 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,954 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,767 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 110,632 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 128,988 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,823 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,233 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,994 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,036 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,138 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,253 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,897 |
| Biggest Cities in Sweden | 0 | - | 4.82 | 37,277 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 76,432 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,246 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,118 |
| Countries with Megacities | 0 | - | 4.99 | 197,557 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,815 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,108 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 95,626 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,054 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,249 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,265 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,865 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,621 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,911 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.39 | 87,049 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 73,255 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.31 | 81,541 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.09 | 87,253 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.18 | 69,219 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 64,731 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,429 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,788 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,312,473 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,847 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,652 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 81,317 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,826 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 148,174 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 97,050 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,845 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,780 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,364 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,582 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 60,434 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 152,614 |
| Flags to Largest Cities | 0 | - | 4.54 | 32,028 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 194,152 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,057 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,197 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,221 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,151 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 91,438 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 69,981 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,048 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,957 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 60,419 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,377 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 34,006 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,185 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,994 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.31 | 21,742 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.99 | 56,257 |
| Countries of Europe by Population | 0 | - | 4.98 | 127,210 |
| Most Populous Countries by Year | 0 | - | 4.81 | 93,841 |
| Most Populous Country by First Two Letters | 0 | - | 4.75 | 66,987 |
| Demographics Multiple Choice | 0 | - | 4.66 | 39,819 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,793 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,756 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,468 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,613 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 70,334 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,284 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,065 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,600 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,806 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 28,522 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 36,128 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,395 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,674 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,726 |
| Biggest Cities in France | 0 | - | 4.76 | 199,897 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,745 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,261 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,141 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,588 |
| Biggest Cities in China | 0 | - | 4.64 | 138,870 |
| Cities of Ireland | 0 | - | 4.43 | 39,770 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,566 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,616 |
| Biggest Cities in India | 0 | - | 4.72 | 62,458 |
| Biggest Cities in Italy | 0 | - | 4.65 | 217,434 |
| Biggest U.S. Cities A-Z | 0 | - | 4.63 | 123,107 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,441 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,680 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,672 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,192 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,706 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,994 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 87,024 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 143,848 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 145,228 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.67 | 56,362 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,595 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,488 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,444 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,675 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,714 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,047 |
| Most Populous Islands | 0 | - | 4.71 | 112,823 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,384 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 205,512 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 161,068 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 157,543 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 80,949 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,567 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 86,723 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 146,329 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 49,689 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 64,505 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 6,099 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,683 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 30,040 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.47 | 29,631 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,743 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,779 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,002 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 162,180 |
| Boundary Waters | 0 | - | 4.93 | 81,169 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 74,896 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.89 | 50,821 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,282 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 91,615 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,460 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,356 |
