| Neutral European Countries of WWII | 0 | - | 4.91 | 158,767 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 69,224 |
| Biggest European Cities by Century | 0 | - | 4.98 | 127,228 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 164,985 |
| Biggest Cities in the World | 0 | - | 4.91 | 774,867 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 407,669 |
| Biggest Cities in the United States | 0 | - | 4.94 | 946,405 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 359,536 |
| Biggest City by Time Zone | 0 | - | 4.87 | 64,368 |
| Biggest City in Every Country | 0 | - | 4.98 | 94,989 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 196,553 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 106,272 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 116,164 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 76,163 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 81,684 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 76,081 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,652 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 67,573 |
| Ten Southernmost Megacities | 0 | - | 4.83 | 51,049 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 64,899 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 125,074 |
| Biggest English Cities by Century | 0 | - | 4.90 | 104,848 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 564,422 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.89 | 116,994 |
| Biggest Cities by Language | 0 | - | 4.95 | 227,904 |
| Largest City by Island | 0 | - | 4.90 | 69,569 |
| Most Populous World Capitals | 0 | - | 4.94 | 172,768 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.86 | 54,954 |
| Megacities on a World Map | 0 | - | 4.98 | 238,049 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,746 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 72,158 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 105,197 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 164,627 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,175 |
| Countries of Europe After World War II | 0 | - | 4.99 | 184,538 |
| Biggest Cities in Asia | 0 | - | 4.94 | 106,871 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,676 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 335,429 |
| Megacities on an Empty Map | 0 | - | 4.96 | 95,448 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 48,937 |
| Biggest Cities in History | 0 | - | 4.52 | 88,089 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,592 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 67,778 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 72,228 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 217,828 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 132,521 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 111,348 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 67,686 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 156,167 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 44,059 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 114,337 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 77,381 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 38,701 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 112,936 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 60,279 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 152,925 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 99,839 |
| Biggest Cities in France - Extreme | 0 | - | 4.86 | 54,311 |
| Largest Nordic Cities on a Map | 0 | - | 4.82 | 35,883 |
| Biggest Cities in Germany | 0 | - | 4.95 | 286,814 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 127,520 |
| Biggest Cities in Europe | 0 | - | 4.70 | 533,699 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 57,716 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,209 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,720 |
| Biggest City by Region | 0 | - | 4.50 | 35,586 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,467 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,189 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,711 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,972 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 82,268 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,962 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 91,284 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,425 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 94,222 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 46,191 |
| Vietnam War Countries | 0 | - | 4.81 | 92,538 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 142,517 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 125,082 |
| Largest Cities in Alexander's Empire | 0 | - | 4.57 | 39,661 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,763 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,834 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 122,008 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 114,545 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 106,955 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 120,301 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 140,437 |
| Biggest Cities Starting With P | 0 | - | 4.45 | 124,276 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,515 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 104,526 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 106,432 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 72,542 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 63,956 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,828 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 163,841 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,408 |
| Biggest Cities by Latitude | 0 | - | 4.78 | 27,315 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 72,509 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,588 |
| Biggest Cities by Trait #2 | 0 | - | 4.41 | 15,102 |
| Flags to Largest Cities | 0 | - | 4.54 | 37,363 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 40,607 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 107,833 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 92,272 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 218,770 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,414,278 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 372,093 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 162,771 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 121,148 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,012 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.74 | 68,036 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.79 | 46,607 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 82,836 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,230 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,220 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 39,818 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,570 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,922 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,702 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 160,000 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 103,407 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 85,411 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 124,209 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 126,034 |
| Countries of the German Empire | 0 | - | 4.51 | 37,156 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 167,478 |
| Countries with Megacities | 0 | - | 4.99 | 228,483 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 193,615 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 109,991 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 132,382 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 77,634 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 313,839 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 45,037 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,180 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 47,858 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.41 | 50,672 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,668 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 42,468 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 174,568 |
| Biggest Cities in Japan | 0 | - | 4.68 | 81,681 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,311 |
| Biggest Cities in France | 0 | - | 4.70 | 218,828 |
| Biggest Cities in Spain | 0 | - | 4.63 | 167,424 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 54,990 |
| Biggest Cities in Poland | 0 | - | 4.61 | 52,738 |
| Biggest Cities in the UK | 0 | - | 4.47 | 102,720 |
| Biggest Cities in China | 0 | - | 4.52 | 154,284 |
| Biggest Cities in Canada | 0 | - | 4.56 | 130,343 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,499 |
| Biggest Cities in India | 0 | - | 4.70 | 66,634 |
| Biggest Cities in Italy | 0 | - | 4.74 | 236,586 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 137,632 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 125,784 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 84,380 |
| Countries of Europe by Population | 0 | - | 4.98 | 173,562 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 262,547 |
| Most Populous Countries by Year | 0 | - | 4.83 | 107,139 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 119,268 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 110,065 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 91,029 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 94,199 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 125,894 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 104,694 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 110,470 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 87,798 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 57,125 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,299 |
| Biggest Nordic Cities | 0 | - | 4.38 | 61,182 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,378 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,449 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,345 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,380 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,090 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,036 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 52,105 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 38,336 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 44,351 |
| Cities of Ireland | 0 | - | 4.50 | 49,660 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,887 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 100,079 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 105,409 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 84,277 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 79,341 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 32,842 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 66,754 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 72,535 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 80,740 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,484 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 34,528 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 219,091 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 132,889 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 74,371 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 82,608 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 65,808 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,024 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,982 |
| Countries of the Soviet Union | 0 | - | 4.98 | 192,597 |
| Countries of the Italian Empire | 0 | - | 4.21 | 27,264 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 162,509 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 167,201 |
