| Biggest Cities in Asia | 0 | - | 4.94 | 95,736 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,369 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,150 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 91,762 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,166 |
| Biggest Cities in the World | 0 | - | 4.89 | 685,838 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,629 |
| Biggest Cities in Germany | 0 | - | 4.95 | 262,690 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,210 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 75,899 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,267 |
| Biggest City in Every Country | 0 | - | 4.97 | 78,653 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 169,439 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 91,920 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,005 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 64,789 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 198,992 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,296 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 370,789 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,094 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,311 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 303,676 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,328 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,622 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,328 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 55,103 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 106,204 |
| Biggest Cities in the United States | 0 | - | 4.92 | 814,891 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 333,464 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,927 |
| Biggest Cities by Language | 0 | - | 4.95 | 213,755 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,772 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,328 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,674 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 131,560 |
| Megacities on a World Map | 0 | - | 4.98 | 220,540 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 43,888 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 512,819 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,803 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,329 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,388 |
| 500 Biggest US Cities | 0 | - | 4.87 | 97,840 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,270 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,177 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,061 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 50,883 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,993 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,632 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,721 |
| Biggest Cities in Europe | 0 | - | 4.76 | 463,758 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,454 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,271 |
| Biggest Cities in China | 0 | - | 4.64 | 138,238 |
| Biggest Cities in India | 0 | - | 4.72 | 62,323 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,964 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,549 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,885 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 63,697 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,810 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,894 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,525 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,719 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,528 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,800 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,347 |
| Biggest Cities in France | 0 | - | 4.76 | 199,157 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,324 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,115 |
| Biggest Cities in Poland | 0 | - | 4.56 | 48,016 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,333 |
| Cities of Ireland | 0 | - | 4.43 | 39,692 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,315 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,524 |
| Biggest Cities in Italy | 0 | - | 4.65 | 216,890 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,308 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,511 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,042 |
| Biggest City by Region | 0 | - | 4.49 | 33,613 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,342 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,349 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,509 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,456 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 46,993 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,329 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,356 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,577 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,892 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 77,864 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,886 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,293 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,954 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,747 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,142 |
| Biggest City by Island | 0 | - | 4.57 | 45,751 |
| Biggest Cities in History | 0 | - | 4.50 | 80,133 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 67,925 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,099 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,552 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,665 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,525 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,772 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 112,087 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,785 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,541 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 110,363 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 128,676 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,583 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,215 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,525 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,764 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,969 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,106 |
| Biggest Cities in Mexico | 0 | - | 4.55 | 29,188 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.21 | 17,019 |
| Biggest U.S. Cities A-Z | 0 | - | 4.63 | 122,039 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,028 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,613 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,052 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,158 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,962 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,647 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,020 |
| Five Biggest Cities by Country | 0 | - | 4.67 | 152,344 |
| Biggest City by Region #2 | 0 | - | 4.45 | 23,099 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,227 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,846 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,265 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,468 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,694 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,865 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,684 |
| Saint Lucia Country Quiz | 0 | - | 4.70 | 16,267 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,915 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 193,698 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,309,734 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,007 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,564 |
| Countries with Megacities | 0 | - | 4.99 | 196,740 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,148 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,715 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,044 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,684 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,386 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,603 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 37,168 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 90,991 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,561 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 81,013 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,423 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,210 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,804 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,887 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,924 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,703 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,540 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,140 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 64,959 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,885 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 65,994 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,779 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 108,883 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,871 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,000 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,419 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,243 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,538 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,163 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 14,680 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 83,237 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.38 | 69,667 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,984 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,612 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,972 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,739 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,974 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,409 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 27,896 |
| Biggest Cities in California | 0 | - | 4.35 | 130,330 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,304 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,789 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,638 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,662 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,275 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,355 |
| Countries of Europe by Population | 0 | - | 4.98 | 126,154 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,569 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,394 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,122 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,300 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 69,284 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,848 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 28,391 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,341 |
| Cities on Interstate 90 on a Map | 0 | - | 4.40 | 25,217 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,023 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,470 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,539 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,053 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,606 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,873 |
