| Biggest Cities in the World | 0 | - | 4.91 | 776,541 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 336,039 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 408,229 |
| Biggest Cities in the United States | 0 | - | 4.93 | 948,602 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 359,905 |
| Biggest City by Time Zone | 0 | - | 4.87 | 64,609 |
| Biggest City in Every Country | 0 | - | 4.98 | 95,328 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 197,096 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 106,545 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 116,837 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 76,404 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 218,251 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 81,901 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 132,818 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 76,318 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,757 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 111,595 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 67,735 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 54,392 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 65,086 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 125,381 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 565,256 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.89 | 117,120 |
| Biggest Cities by Language | 0 | - | 4.95 | 228,164 |
| Largest City by Island | 0 | - | 4.90 | 69,732 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 69,327 |
| Most Populous World Capitals | 0 | - | 4.94 | 172,944 |
| Biggest European Cities by Century | 0 | - | 4.98 | 127,352 |
| Megacities on a World Map | 0 | - | 4.98 | 238,525 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 114,686 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,854 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 72,320 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 108,073 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 164,869 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 165,148 |
| Biggest Cities in Asia | 0 | - | 4.94 | 107,060 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,752 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 104,734 |
| Biggest Cities in France - Extreme | 0 | - | 4.86 | 54,472 |
| Megacities on an Empty Map | 0 | - | 4.96 | 95,582 |
| Largest Nordic Cities on a Map | 0 | - | 4.82 | 35,978 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 49,077 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 67,852 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 72,332 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,692 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 156,366 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 44,359 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 77,531 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 38,876 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 113,197 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 60,399 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 106,523 |
| Biggest Cities in Europe | 0 | - | 4.70 | 534,624 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 57,843 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,230 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 44,934 |
| Biggest City by Region | 0 | - | 4.50 | 35,632 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,510 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.86 | 55,019 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,737 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,999 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 82,334 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,996 |
| Biggest Cities in Germany | 0 | - | 4.95 | 287,193 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 219,039 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 91,571 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 40,462 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 94,478 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 46,280 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 143,523 |
| Biggest Cities in History | 0 | - | 4.52 | 88,200 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,643 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,807 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 67,741 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,883 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 122,123 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 114,640 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 107,093 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 120,431 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 140,596 |
| Biggest Cities Starting With P | 0 | - | 4.45 | 124,407 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 162,996 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 121,339 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 72,567 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,837 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,432 |
| Biggest Cities by Latitude | 0 | - | 4.78 | 27,326 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 72,569 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,634 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 17,393 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 42,567 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 40,667 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 137,710 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,341 |
| Biggest English Cities by Century | 0 | - | 4.90 | 104,932 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 191,069 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 124,852 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 121,940 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,416,585 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 372,717 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 167,920 |
| Countries with Megacities | 0 | - | 4.99 | 236,731 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 194,066 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 110,235 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 132,789 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 77,915 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 314,816 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 64,013 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 164,017 |
| Flags to Largest Cities | 0 | - | 4.54 | 37,457 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,076 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 107,945 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 92,363 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,715 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 160,155 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 103,474 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 85,483 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 124,330 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 126,158 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 125,160 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,045 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,646 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 82,976 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.28 | 112,157 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,280 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,248 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 39,857 |
| Cities on Interstate 90 on a Map | 0 | - | 4.44 | 31,579 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,009 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 125,949 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 84,533 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 262,845 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 119,435 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 110,164 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 91,191 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 57,265 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 45,066 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,279 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,231 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 47,900 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.41 | 50,729 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 174,661 |
| Biggest Cities in Japan | 0 | - | 4.68 | 81,751 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,387 |
| Biggest Cities in France | 0 | - | 4.70 | 219,304 |
| Biggest Cities in Spain | 0 | - | 4.63 | 167,663 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,054 |
| Biggest Cities in Poland | 0 | - | 4.61 | 52,819 |
| Biggest Cities in the UK | 0 | - | 4.47 | 102,875 |
| Biggest Cities in China | 0 | - | 4.52 | 154,561 |
| Biggest Cities in Canada | 0 | - | 4.56 | 130,474 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,541 |
| Biggest Cities in India | 0 | - | 4.70 | 66,709 |
| Biggest Cities in Italy | 0 | - | 4.74 | 236,913 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,090 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 121,933 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 122,971 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 60,927 |
| Countries of Europe by Population | 0 | - | 4.98 | 173,994 |
| Most Populous Countries by Year | 0 | - | 4.83 | 107,378 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 94,410 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 126,519 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 105,056 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 110,771 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 88,071 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 91,553 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,415 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,124 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 100,184 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 105,495 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 84,342 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 79,412 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 32,905 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 66,791 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 72,582 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 80,792 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 219,317 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 133,050 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 74,472 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 82,717 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 65,890 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 72,107 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 95,109 |
| Countries with the Most Christians | 0 | - | 4.92 | 138,923 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 85,097 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 162,658 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 167,415 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,386 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,281 |
| Demographics Multiple Choice | 0 | - | 4.69 | 41,832 |
| Biggest Nordic Cities | 0 | - | 4.38 | 61,212 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,432 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,219 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,494 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,412 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,532 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 52,164 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 38,405 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 44,426 |
| Cities of Ireland | 0 | - | 4.50 | 49,721 |
