| Biggest Cities in the World | 0 | - | 4.91 | 793,609 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,109 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,320 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,153 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,387 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,569 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,967 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,902 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,208 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,052 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,389 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,473 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,006 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,044 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,207 |
| Biggest Cities in the United States | 0 | - | 4.93 | 971,369 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,724 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,407 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,233 |
| Largest City by Island | 0 | - | 4.87 | 71,364 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,574 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,916 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,914 |
| Megacities on a World Map | 0 | - | 4.98 | 252,204 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,219 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,006 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,323 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,482 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,672 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,388 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,213 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,374 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,076 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,710 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,162 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,544 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,945 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,015 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,688 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,040 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,715 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,291 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,386 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,677 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,266 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,165 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,075 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,324 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,382 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,675 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,761 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,730 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,993 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,208 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,018 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,806 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,481 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,175 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,977 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,827 |
| Biggest City by Region | 0 | - | 4.50 | 36,057 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,988 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,777 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,035 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,097 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,275 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,061 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,155 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,314 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,502 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,697 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,750 |
| Biggest Cities in History | 0 | - | 4.52 | 89,340 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,205 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,272 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,299 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,808 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,225 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,902 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,224 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,765 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,280 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,722 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,758 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,237 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,148 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,274 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,013 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,734 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,174 |
| Biggest Cities in France | 0 | - | 4.70 | 223,001 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,381 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,781 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,617 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,448 |
| Biggest Cities in China | 0 | - | 4.53 | 157,662 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,208 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,053 |
| Biggest Cities in India | 0 | - | 4.70 | 67,493 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,151 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,236 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,495 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,548 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,934 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,569 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,000 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,027 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,715 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,506 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,728 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,386 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,039 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,886 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,100 |
| Cities of Ireland | 0 | - | 4.51 | 50,478 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,134 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,557 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,738 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,233 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,392 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,709 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,173 |
| Countries with Megacities | 0 | - | 4.99 | 248,737 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,037 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,490 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,409 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,440 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,192 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,814 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,053 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,882 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,875 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,164 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,963 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,808 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,068 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,747 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,492 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,390 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,944 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,886 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,903 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,622 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,557 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,366 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,823 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,708 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,937 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,263 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,641 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,906 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,028 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,589 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,636 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 153,309 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 42,179 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,920 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,392 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,250 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,827 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,285 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,056 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,061 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,602 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,032 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,041 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,765 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,991 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,727 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,723 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,222 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,275 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,489 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,314 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,241 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,466 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,129 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,733 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,312 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,805 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,310 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,691 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,873 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,588 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,500 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,132 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,378 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,499 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,327 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,047 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,970 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,931 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,634 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,508 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,868 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,742 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,997 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,505 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,471 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,528 |
