| Biggest Cities in the World | 0 | - | 4.91 | 796,395 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,430 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,848 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,029 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,839 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,687 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,329 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,169 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,380 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,410 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,643 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,742 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,201 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,335 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,781 |
| Biggest Cities in the United States | 0 | - | 4.93 | 975,197 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,471 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,992 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,942 |
| Largest City by Island | 0 | - | 4.87 | 71,638 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,765 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,623 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,213 |
| Megacities on a World Map | 0 | - | 4.98 | 253,234 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,094 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,863 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,191 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,652 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,143 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,037 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,655 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,488 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,732 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,595 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,875 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,055 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,774 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,575 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,926 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,288 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,457 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 113,807 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,783 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,379 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,826 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,467 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,899 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,996 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,029 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,209 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,541 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,438 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,018 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,380 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,041 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,910 |
| Biggest City by Region | 0 | - | 4.50 | 36,117 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,048 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,944 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,600 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,146 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,318 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,154 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,357 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,914 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,866 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,231 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,130 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,336 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,026 |
| Biggest Cities in History | 0 | - | 4.52 | 89,988 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 75,392 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,349 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,380 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,292 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,488 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,098 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,436 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,179 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,500 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,083 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,852 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,148 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,378 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,233 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,820 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,003 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.68 | 63,269 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,627 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,850 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,704 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,629 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,998 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,661 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,028 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,324 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,754 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,531 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,513 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,232 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,560 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,857 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,980 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,678 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,040 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,269 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,379 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,429 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,862 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,609 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,919 |
| Countries with Megacities | 0 | - | 4.99 | 257,354 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,779 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,928 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,071 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,933 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,337 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,864 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,910 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,474 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,150 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,967 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,338 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,028 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,579 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,534 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,442 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,159 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,005 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,953 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,728 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,793 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,466 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,903 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,770 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,982 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,334 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,107 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,177 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,901 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,294 |
| Biggest Cities in France | 0 | - | 4.70 | 223,550 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,804 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,889 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,778 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,054 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,821 |
| Biggest Cities in China | 0 | - | 4.52 | 158,185 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,650 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,156 |
| Biggest Cities in India | 0 | - | 4.63 | 67,643 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,700 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,100 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,402 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,697 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,520 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,349 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,649 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,244 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,336 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,895 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,771 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,109 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,151 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,794 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,009 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,241 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,981 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,197 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,410 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,469 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,629 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,441 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,384 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,598 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,061 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,346 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,488 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,180 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,675 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,952 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,130 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,813 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,542 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,232 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,819 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,429 |
| Cities of Ireland | 0 | - | 4.51 | 50,555 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,167 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,128 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,027 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,700 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,074 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,052 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,364 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,147 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,424 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,055 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,755 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,872 |
