| Biggest Cities in the World | 0 | - | 4.91 | 801,271 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,351 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,142 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,029 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,820 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 142,283 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,213 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,816 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,897 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,376 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,214 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,327 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,859 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,946 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,194 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,463 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,855 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,105 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,029 |
| Largest City by Island | 0 | - | 4.87 | 72,090 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,188 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,239 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,806 |
| Megacities on a World Map | 0 | - | 4.98 | 255,437 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,594 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,528 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,217 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,292 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,742 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,889 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,084 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,650 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,588 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,418 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,232 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,752 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,211 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,382 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,592 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,257 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,292 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,236 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,673 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,794 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,018 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,650 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,886 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,134 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,751 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,575 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,583 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,774 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,200 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,073 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,501 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,520 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,915 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,768 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,570 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,055 |
| Biggest City by Region | 0 | - | 4.50 | 36,292 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,202 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,314 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,600 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,233 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,383 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,367 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,998 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,466 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,347 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,024 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,963 |
| Biggest Cities in History | 0 | - | 4.52 | 90,318 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,219 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,492 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,549 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,562 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,807 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,602 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,201 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,639 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,320 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,876 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,495 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,591 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,373 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,983 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,463 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,248 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,547 |
| Biggest Cities in France | 0 | - | 4.70 | 224,463 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,512 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,092 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,035 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,469 |
| Biggest Cities in China | 0 | - | 4.53 | 159,099 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,102 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,312 |
| Biggest Cities in India | 0 | - | 4.64 | 67,865 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,551 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,450 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,464 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,839 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,091 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,830 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,098 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,860 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,855 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,574 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,796 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,939 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,735 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,537 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,229 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,425 |
| Cities of Ireland | 0 | - | 4.51 | 50,738 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,209 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,263 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,285 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,442 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,726 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,096 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,982 |
| Countries with Megacities | 0 | - | 4.99 | 264,768 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,824 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,517 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,078 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,593 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,657 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,009 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,259 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,053 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,948 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,002 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,461 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,232 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,928 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,469 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,513 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,161 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,201 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,030 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,921 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,680 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,629 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,062 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,897 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,061 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,450 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,298 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,215 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,260 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,671 |
| Flags of the Countries that Start with C | 0 | - | 4.88 | 130,349 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 154,205 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 43,100 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 127,554 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,091 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,975 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,271 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,202 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,595 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,773 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,248 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,312 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,358 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,872 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,103 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,277 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,507 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,629 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,688 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,791 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,572 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,535 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,762 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,560 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,902 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,717 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,768 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,183 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,352 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,516 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,999 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,630 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,405 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,500 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,637 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,591 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,301 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,142 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,268 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,532 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,315 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,939 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,352 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,653 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,425 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,229 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,394 |
