| Biggest Cities in the World | 0 | - | 4.91 | 805,375 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,917 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,930 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,717 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,353 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,437 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,895 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,770 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,232 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,551 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,946 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,609 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,705 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,197 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,375 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,291 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,789 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,979 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,859 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,566 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,636 |
| Largest City by Island | 0 | - | 4.87 | 72,441 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,416 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,677 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,130 |
| Megacities on a World Map | 0 | - | 4.98 | 256,852 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,755 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,653 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,358 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,637 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,630 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,975 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,124 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,413 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,182 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,502 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,307 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,966 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,723 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,699 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,440 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,446 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,005 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,051 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,013 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,292 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,570 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,432 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,164 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,898 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,089 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,645 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,153 |
| Biggest City by Region | 0 | - | 4.50 | 36,389 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,333 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,304 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,440 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,542 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,568 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,045 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,516 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,422 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,420 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,170 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,771 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,577 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,526 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,956 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,986 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,837 |
| Biggest Cities in History | 0 | - | 4.52 | 90,576 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,982 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,609 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,691 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,348 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,560 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,013 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,130 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,160 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,953 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,563 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,076 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,723 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,278 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,177 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,137 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,916 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,900 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,768 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,484 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,225 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,501 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,749 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,275 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,267 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,475 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,445 |
| Biggest Cities in India | 0 | - | 4.64 | 68,051 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,545 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,768 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,820 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,866 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,911 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,673 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,681 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,898 |
| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 139,601 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,881 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,423 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,101 |
| Countries with Megacities | 0 | - | 4.99 | 267,016 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,806 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,106 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,124 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,219 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,137 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,973 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,998 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,316 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,094 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,811 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,421 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,564 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,989 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,128 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,784 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,795 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,491 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,335 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,821 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,128 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,258 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,419 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,311 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,001 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,637 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,888 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,203 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,599 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,455 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,578 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,520 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,081 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,202 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,163 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,997 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,115 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,532 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,182 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,382 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,171 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,878 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,347 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,056 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,739 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,581 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,582 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,378 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,368 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,711 |
| Biggest Cities in France | 0 | - | 4.70 | 225,268 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,130 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,732 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,812 |
| Biggest Cities in China | 0 | - | 4.53 | 159,840 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,341 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,906 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,377 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,024 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,384 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,900 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,331 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,654 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,744 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,881 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,186 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,992 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,464 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,528 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,923 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,584 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,145 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,788 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,873 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,511 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,188 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,509 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,852 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,752 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,643 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,909 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,378 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,006 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,681 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,843 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,830 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,970 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,553 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,696 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,537 |
