| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,204 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,014 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,596 |
| Biggest Cities in the United States | 0 | - | 4.94 | 983,654 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,310 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,588 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,491 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,583 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,093 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,500 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,465 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,003 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,644 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,399 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,474 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 64,993 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,122 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,682 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,546 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,307 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,314 |
| Largest City by Island | 0 | - | 4.87 | 72,219 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,286 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,422 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,941 |
| Megacities on a World Map | 0 | - | 4.98 | 255,997 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,626 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,396 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,623 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,233 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,752 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,647 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,301 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,588 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,931 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,333 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,200 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,362 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,020 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,974 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,778 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,751 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,954 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,801 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,228 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,783 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,685 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,043 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,912 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,598 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,090 |
| Biggest City by Region | 0 | - | 4.50 | 36,323 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,245 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,405 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,908 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,266 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,408 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,439 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,171 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,503 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,534 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,699 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,882 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,389 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,356 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,557 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,754 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,312 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,458 |
| Biggest Cities in History | 0 | - | 4.52 | 90,425 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,634 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,331 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,539 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,601 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,718 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,945 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,747 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,343 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,801 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,461 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,661 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,695 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,985 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,120 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,114 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,880 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,592 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,663 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,415 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,791 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,533 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,592 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,814 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,607 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,375 |
| Countries with Megacities | 0 | - | 4.99 | 265,691 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,165 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,719 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,434 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,798 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,008 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,900 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,964 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,035 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,655 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,376 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,371 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,970 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,710 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,423 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,600 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,343 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,114 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,602 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,781 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,898 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,538 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,050 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,392 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,095 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,947 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,481 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,095 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,240 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,097 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,562 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,392 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,702 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,935 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,372 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,757 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,248 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,970 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,674 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,081 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,423 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,277 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,304 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,560 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,350 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,648 |
| Biggest Cities in France | 0 | - | 4.70 | 224,815 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,765 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,166 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,152 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,619 |
| Biggest Cities in China | 0 | - | 4.53 | 159,452 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,262 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,379 |
| Biggest Cities in India | 0 | - | 4.64 | 67,940 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,883 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,459 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,177 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,101 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,792 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,978 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,373 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,510 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,649 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,062 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,912 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,539 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,378 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,605 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,707 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,759 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,840 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,611 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,589 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,815 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,486 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,669 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,380 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,051 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,404 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,717 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,564 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,939 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,395 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,608 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,953 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,340 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,657 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,469 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,976 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,373 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,435 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,895 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,670 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,314 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,487 |
| Cities of Ireland | 0 | - | 4.51 | 50,800 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,233 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,358 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,176 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,845 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,629 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,253 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,608 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,713 |
