| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,440 |
| Biggest Cities in the World | 0 | - | 4.91 | 802,611 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,532 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,403 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,450 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,024 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 147,933 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,399 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,960 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,415 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,581 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,353 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,437 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,960 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,079 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,554 |
| Biggest Cities in the United States | 0 | - | 4.94 | 982,956 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,178 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,322 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,400 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,683 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,262 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,238 |
| Largest City by Island | 0 | - | 4.87 | 72,186 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,269 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,376 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,911 |
| Megacities on a World Map | 0 | - | 4.98 | 255,838 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,593 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,354 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,545 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,347 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,353 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,911 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,410 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,818 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,350 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,340 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,477 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,733 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,935 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,717 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,585 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,281 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,890 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,302 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,608 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,630 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,715 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,176 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,830 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,110 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,301 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,951 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,347 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,577 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,683 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,741 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,829 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,594 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,575 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,802 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,722 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,699 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,901 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 83,650 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,185 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,715 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,649 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,263 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,469 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,280 |
| Countries with Megacities | 0 | - | 4.99 | 265,464 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,103 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,671 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,346 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,741 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,863 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,593 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,081 |
| Biggest City by Region | 0 | - | 4.50 | 36,313 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,230 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,375 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,828 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,258 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,397 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,419 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,127 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,493 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,080 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,198 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,058 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,484 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,337 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,678 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,884 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,346 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,875 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,374 |
| Biggest Cities in History | 0 | - | 4.52 | 90,390 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,568 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,527 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,594 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,534 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,322 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,623 |
| Biggest Cities in France | 0 | - | 4.70 | 224,721 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,708 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,151 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,292 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,118 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,472 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,583 |
| Biggest Cities in China | 0 | - | 4.53 | 159,361 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,223 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,359 |
| Biggest Cities in India | 0 | - | 4.64 | 67,926 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,794 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,636 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,878 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,688 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,292 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,740 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,421 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,014 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,040 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,768 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,919 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,331 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,469 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,608 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,046 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,116 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,560 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,108 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,873 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,583 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,641 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,407 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,776 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,411 |
| Cities of Ireland | 0 | - | 4.51 | 50,789 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,225 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,437 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,626 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,363 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,022 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,391 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,700 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,527 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,352 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,543 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,730 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,538 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,168 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,558 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,683 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,941 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,670 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,328 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,262 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,615 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,982 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,879 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,021 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,917 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,515 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,028 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,631 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,293 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,107 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,963 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,645 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,107 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,518 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,303 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,057 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,550 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,013 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,769 |
| Most Populous Islands | 0 | - | 4.80 | 123,133 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,343 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,593 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,914 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,364 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,671 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,874 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,531 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,297 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,734 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,046 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,225 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,083 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,934 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,078 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,469 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,686 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,119 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,940 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,121 |
