| Biggest Cities in the World | 0 | - | 4.91 | 802,397 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,503 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,370 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,373 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,986 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 147,460 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,371 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,940 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,316 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,544 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,328 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,417 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,940 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,058 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,521 |
| Biggest Cities in the United States | 0 | - | 4.94 | 982,599 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,119 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,230 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,202 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,255 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,352 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,890 |
| Megacities on a World Map | 0 | - | 4.98 | 255,765 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,193 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,580 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,325 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,505 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,876 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,314 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,688 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,551 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,272 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,868 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,284 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,162 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,814 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,061 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,260 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,908 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,843 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,590 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,075 |
| Biggest City by Region | 0 | - | 4.50 | 36,307 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,226 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,698 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,680 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,876 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,253 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,391 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,412 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 83,561 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,167 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,684 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,633 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,489 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,577 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,592 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,754 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,356 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,776 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,106 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,325 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,682 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,567 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 165,319 |
| Biggest Cities in History | 0 | - | 4.52 | 90,376 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,528 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,521 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,586 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,624 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,867 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,677 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,276 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,729 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,404 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,113 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,105 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,870 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,582 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,769 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,778 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,332 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,335 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,425 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,720 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,215 |
| Countries with Megacities | 0 | - | 4.99 | 265,341 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,044 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,645 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,285 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,719 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,636 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,396 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,335 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,964 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,408 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,547 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,025 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,958 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,081 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,508 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,285 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,038 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,537 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,965 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,868 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,990 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,603 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,330 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,339 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,603 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,173 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,042 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,444 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,314 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,666 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,862 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,319 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,855 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,526 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,265 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,899 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,042 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,120 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,082 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,927 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,072 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,459 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,069 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,933 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,009 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,933 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,320 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,758 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,884 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,290 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,448 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,578 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,034 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,897 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,719 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,230 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,945 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,654 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,388 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,519 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,257 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,286 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,514 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,305 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,606 |
| Biggest Cities in France | 0 | - | 4.70 | 224,669 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,674 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,137 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,102 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,562 |
| Biggest Cities in China | 0 | - | 4.53 | 159,317 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,210 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,345 |
| Biggest Cities in India | 0 | - | 4.64 | 67,915 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,724 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,336 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,559 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,670 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,735 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,823 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,589 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,570 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,793 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,424 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,410 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,606 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,356 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,002 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,387 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,691 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,506 |
| African Island Countries | 0 | - | 4.96 | 102,072 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,322 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,513 |
| Islands by Country #1 | 0 | - | 4.90 | 175,686 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,351 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,409 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,885 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,270 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,461 |
| Most Populous Islands | 0 | - | 4.80 | 123,117 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,338 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,587 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,658 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,486 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,093 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,519 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,910 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,658 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,894 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,633 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,356 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,237 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,595 |
