| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,057 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,968 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,927 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,276 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,013 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,872 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,733 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,808 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,123 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,757 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,734 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,253 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,164 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,277 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,824 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,904 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,104 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,052 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,763 |
| Largest City by Island | 0 | - | 4.87 | 72,064 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,163 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,197 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,764 |
| Megacities on a World Map | 0 | - | 4.98 | 255,335 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,406 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,513 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,186 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,219 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,703 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,733 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,537 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,352 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,216 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,707 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,181 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,000 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,629 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,820 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,092 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,696 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,746 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,565 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,045 |
| Biggest City by Region | 0 | - | 4.50 | 36,283 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,193 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,548 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,553 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,739 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,225 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,380 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,361 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,058 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,039 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,453 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,489 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,455 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,428 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,437 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,219 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,298 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,537 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,969 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,999 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,639 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,639 |
| Biggest Cities in History | 0 | - | 4.52 | 90,299 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,123 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,485 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,537 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,514 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,774 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,566 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,170 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,595 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,279 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,084 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,093 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,847 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,573 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,721 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,534 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,230 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 41,277 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,162 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,651 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,920 |
| Countries with Megacities | 0 | - | 4.99 | 264,606 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,754 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,481 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,016 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,553 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,582 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,360 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,897 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,320 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,000 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,472 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,999 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,946 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,955 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,422 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,206 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,767 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,433 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,900 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,819 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,819 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,519 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,231 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,263 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,394 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,065 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,947 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,207 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,160 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,567 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,743 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,228 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,777 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,512 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,124 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,722 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,025 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,530 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,053 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,888 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,055 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,446 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,013 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,450 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,876 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,908 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,301 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,702 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,732 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,156 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,336 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,497 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,988 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,871 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,634 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,192 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,913 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,623 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,273 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,493 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,196 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,252 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,437 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,225 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,528 |
| Biggest Cities in France | 0 | - | 4.70 | 224,402 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,430 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,081 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,015 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,433 |
| Biggest Cities in China | 0 | - | 4.53 | 159,044 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,060 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,303 |
| Biggest Cities in India | 0 | - | 4.64 | 67,844 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,486 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,253 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,485 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,615 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,672 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,783 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,561 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,528 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,750 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,363 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,236 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,511 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,301 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,914 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,340 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,643 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,413 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,356 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,194 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,357 |
| Flags to Languages | 0 | - | 4.95 | 173,921 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 722,748 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,297 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,348 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,869 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,214 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,411 |
| Most Populous Islands | 0 | - | 4.80 | 123,048 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,325 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,569 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,327 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,237 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,655 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,342 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,876 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,576 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,525 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,319 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,155 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,523 |
