| Biggest Cities in the World | 0 | - | 4.92 | 802,743 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,551 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,451 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,487 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,044 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,180 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,424 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,977 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,473 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,604 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,374 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,450 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 64,977 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,099 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,596 |
| Biggest Cities in the United States | 0 | - | 4.94 | 983,212 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,231 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,412 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,276 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,265 |
| Largest City by Island | 0 | - | 4.87 | 72,202 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,274 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,392 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,925 |
| Megacities on a World Map | 0 | - | 4.98 | 255,903 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,609 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,370 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,579 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,936 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,484 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,726 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,613 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,290 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,902 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,312 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,665 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,189 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,850 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,134 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,327 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,979 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,746 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,719 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,910 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,703 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,208 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,746 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,665 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,877 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,596 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,084 |
| Biggest City by Region | 0 | - | 4.50 | 36,317 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,233 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,261 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,400 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,427 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,495 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,990 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,935 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,386 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,858 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,139 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,440 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,694 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,625 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,653 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,404 |
| Biggest Cities in History | 0 | - | 4.52 | 90,399 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,588 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,530 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,078 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,596 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,836 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,368 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,341 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,504 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,736 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,645 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,889 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,698 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,298 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,753 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,429 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,800 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,117 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,109 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,875 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,589 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,783 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,905 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,647 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,408 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,462 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,450 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,436 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,506 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,326 |
| Countries with Megacities | 0 | - | 4.99 | 265,542 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,123 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,687 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,385 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,759 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,889 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,571 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,031 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,029 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,640 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,354 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,360 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,966 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,126 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,526 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,310 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,070 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,562 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,775 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,933 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,654 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,210 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,069 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,507 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,352 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,683 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,898 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,355 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,876 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,533 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,306 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,050 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,298 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,090 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,936 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,474 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,088 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,744 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,238 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,959 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,667 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,409 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,267 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,295 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,545 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,333 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,631 |
| Biggest Cities in France | 0 | - | 4.70 | 224,755 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,734 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,154 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,128 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,599 |
| Biggest Cities in China | 0 | - | 4.53 | 159,388 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,240 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,364 |
| Biggest Cities in India | 0 | - | 4.64 | 67,931 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,826 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,071 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,062 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,948 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,330 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,777 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,943 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,345 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,478 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,621 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,050 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,367 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,428 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,891 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,529 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,301 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,482 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,352 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,585 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,686 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,747 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,829 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,596 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,578 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,803 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,452 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,638 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,367 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,035 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,395 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,703 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,540 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,155 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,741 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,366 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,565 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,474 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,532 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,292 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,778 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,578 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,211 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,583 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,692 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,701 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,276 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,652 |
