| Biggest Cities in the World | 0 | - | 4.92 | 802,881 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,541 |
| Biggest Cities in the United States | 0 | - | 4.94 | 983,446 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,268 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,569 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,469 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,543 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,079 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,379 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,449 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,993 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,627 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,389 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,466 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 64,988 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,113 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,610 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,490 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,294 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,294 |
| Largest City by Island | 0 | - | 4.87 | 72,209 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,280 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,412 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,929 |
| Megacities on a World Map | 0 | - | 4.98 | 255,955 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,618 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,383 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,606 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,093 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,737 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,632 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,299 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,547 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,919 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,326 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,199 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,858 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,176 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,349 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,007 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,768 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,735 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,937 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,754 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,220 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,765 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,671 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,994 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,899 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,597 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,088 |
| Biggest City by Region | 0 | - | 4.50 | 36,320 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,244 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,400 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,895 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,266 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,404 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,435 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,159 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,500 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,492 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,699 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,858 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,385 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,349 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,530 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,747 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,438 |
| Biggest Cities in History | 0 | - | 4.52 | 90,412 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,620 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,537 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,599 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,682 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,917 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,731 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,325 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,781 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,449 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,642 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,676 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,896 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,119 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,112 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,879 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,591 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,653 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,414 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,786 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,502 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,582 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,655 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,563 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,356 |
| Countries with Megacities | 0 | - | 4.99 | 265,629 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,144 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,705 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,408 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,781 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,001 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,897 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,050 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,955 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,034 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,646 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,366 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,368 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,968 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,689 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,308 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,572 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,328 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,098 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,585 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,778 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,889 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,537 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,050 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,344 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,092 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,940 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,478 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,091 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,228 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,080 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,537 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,374 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,698 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,921 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,366 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,319 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,754 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,240 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,963 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,671 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,079 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,417 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,271 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,300 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,556 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,344 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,639 |
| Biggest Cities in France | 0 | - | 4.70 | 224,799 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,755 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,162 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,142 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,609 |
| Biggest Cities in China | 0 | - | 4.53 | 159,420 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,249 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,373 |
| Biggest Cities in India | 0 | - | 4.64 | 67,933 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,867 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,453 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,135 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,081 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,787 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,960 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,362 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,499 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,641 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,057 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,909 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,534 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,363 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,595 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,697 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,756 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,835 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,604 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,583 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,811 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,474 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,658 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,371 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,043 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,400 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,713 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,552 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,384 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,586 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,951 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,334 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,656 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,464 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,974 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,369 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,433 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,894 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,670 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,308 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,485 |
| Cities of Ireland | 0 | - | 4.51 | 50,798 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,233 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,338 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,171 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,821 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,604 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,239 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,596 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,707 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,722 |
