| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,755 |
| Biggest Cities in the World | 0 | - | 4.90 | 702,485 |
| Biggest City by Time Zone | 0 | - | 4.85 | 55,960 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,394 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,201 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,224 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,593 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,798 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,363 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 378,181 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,909 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,993 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,859 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,980 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,716 |
| Biggest Cities in the United States | 0 | - | 4.93 | 848,790 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 338,569 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 522,803 |
| Biggest Cities in Germany | 0 | - | 4.95 | 267,897 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,188 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,370 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,369 |
| Most Populous World Capitals | 0 | - | 4.94 | 162,229 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,398 |
| Megacities on a World Map | 0 | - | 4.98 | 223,689 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,888 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,688 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 91,859 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,340 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,564 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,826 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,266 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,700 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,195 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,438 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,772 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 43,030 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,677 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,685 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,550 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,471 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,575 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,238 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,674 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 309,755 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,213 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 89,458 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 75,412 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.30 | 83,824 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 89,463 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 71,195 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,799 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 61,112 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,435 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,468 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,748 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 105,078 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 70,891 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.87 | 101,097 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,774 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,730 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,353 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,019 |
| Countries with Megacities | 0 | - | 4.99 | 201,822 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,348 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,954 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,234 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,868 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,012 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,281 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 43,378 |
| Biggest City by Region | 0 | - | 4.50 | 34,056 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 54,020 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,608 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,616 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,669 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,985 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,472 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,420 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,651 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,094 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,430 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,334 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,565 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,261 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,240 |
| Biggest Cities in Europe | 0 | - | 4.75 | 488,962 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,406 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.31 | 22,367 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.99 | 56,793 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 137,468 |
| Biggest City by Island | 0 | - | 4.57 | 46,111 |
| Biggest Cities in History | 0 | - | 4.50 | 81,852 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,540 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,623 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 65,133 |
| Biggest Cities in Japan | 0 | - | 4.66 | 76,666 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,608 |
| Biggest Cities in France | 0 | - | 4.71 | 202,947 |
| Biggest Cities in Spain | 0 | - | 4.55 | 156,240 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 51,169 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 49,182 |
| Biggest Cities in Poland | 0 | - | 4.57 | 49,057 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,934 |
| Biggest Cities in the UK | 0 | - | 4.46 | 95,148 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 66,633 |
| Biggest Cities in China | 0 | - | 4.55 | 141,650 |
| Cities of Ireland | 0 | - | 4.43 | 42,137 |
| Biggest Cities in Canada | 0 | - | 4.66 | 122,363 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 44,117 |
| Biggest Cities in India | 0 | - | 4.71 | 63,274 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 41,756 |
| Biggest Cities in Italy | 0 | - | 4.66 | 221,347 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 114,054 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 108,364 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 99,292 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 112,242 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 130,911 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 116,319 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,250 |
| Most Populous Countries by Year | 0 | - | 4.81 | 95,792 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,369 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 98,395 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 84,646 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 95,072 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 72,957 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,661 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,242 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,523 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,146 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,379 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,442 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,221 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,618 |
| Biggest Mediterranean Cities | 0 | - | 4.58 | 87,266 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,602 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,989 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 207,789 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,913 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,354 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,987 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 54,244 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 67,639 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 88,188 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 154,676 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 148,342 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 209,460 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 164,062 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,473 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 82,352 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,706 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 67,656 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 147,984 |
| Demographics Multiple Choice | 0 | - | 4.66 | 40,206 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,601 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.87 | 15,752 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,624 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 61,093 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 154,749 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,982 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 83,085 |
| Flags to Largest Cities | 0 | - | 4.55 | 32,986 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 169,017 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,880 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,124 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,970 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 205,951 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 150,397 |
| Biggest Cities Starting With C | 0 | - | 4.08 | 98,077 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,993 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 116,378 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,842 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 163,524 |
| Most Populous Islands | 0 | - | 4.71 | 114,277 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,541 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,995 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 50,398 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.89 | 51,418 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,322 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,332 |
| Largest World Cities With Four Letters | 0 | - | 4.38 | 43,585 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 78,909 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 63,156 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,842 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,394 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,359 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,494 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,406 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,581 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 94,202 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 174,965 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 151,935 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,574 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 62,063 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.47 | 45,908 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,858 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,213 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 29,211 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,668 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 37,150 |
