| Biggest Cities in the World | 0 | - | 4.91 | 773,503 |
| Biggest City by Time Zone | 0 | - | 4.87 | 64,242 |
| Biggest City in Every Country | 0 | - | 4.98 | 94,799 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 196,214 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 105,985 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 115,956 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 76,054 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 81,574 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 75,960 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,618 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 67,487 |
| Ten Southernmost Megacities | 0 | - | 4.83 | 49,999 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 64,796 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 124,777 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 407,240 |
| Biggest Cities in the United States | 0 | - | 4.94 | 944,698 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 359,226 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 116,907 |
| Biggest Cities by Language | 0 | - | 4.95 | 227,739 |
| Largest City by Island | 0 | - | 4.90 | 69,463 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 69,137 |
| Most Populous World Capitals | 0 | - | 4.94 | 172,664 |
| Biggest European Cities by Century | 0 | - | 4.98 | 127,140 |
| Megacities on a World Map | 0 | - | 4.98 | 237,831 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 563,845 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,688 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 72,069 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 104,884 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 164,417 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 164,863 |
| Biggest Cities in Asia | 0 | - | 4.94 | 106,735 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,601 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 335,012 |
| Megacities on an Empty Map | 0 | - | 4.96 | 95,360 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 48,856 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 67,738 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 72,182 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 217,627 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 132,391 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 111,187 |
| Second Biggest Cities by Country | 0 | - | 4.42 | 57,601 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,182 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,698 |
| Biggest City by Region | 0 | - | 4.50 | 35,566 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,444 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,695 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,954 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 82,214 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,936 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 162,627 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 120,987 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 156,042 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 43,949 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 114,207 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 77,292 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 38,471 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 112,753 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 60,186 |
| Biggest Cities in Europe | 0 | - | 4.70 | 533,081 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 142,455 |
| Biggest Cities in History | 0 | - | 4.52 | 87,990 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,567 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.86 | 54,894 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 99,766 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,729 |
| Biggest Cities in France - Extreme | 0 | - | 4.86 | 54,204 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 35,802 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 67,654 |
| Biggest Cities in Germany | 0 | - | 4.95 | 286,571 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 121,874 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 114,263 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 106,831 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 120,119 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 140,301 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 124,154 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 72,518 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,816 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,395 |
| Biggest Cities by Latitude | 0 | - | 4.78 | 27,296 |
| Biggest Cities by Trait #2 | 0 | - | 4.41 | 15,089 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 167,179 |
| Countries with Megacities | 0 | - | 4.99 | 228,117 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 193,370 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 109,840 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 132,159 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 77,452 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 313,216 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 91,076 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,397 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 93,986 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 46,138 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,412,398 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 371,530 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 72,440 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,255 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 40,568 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,810 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,688 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 159,834 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 103,309 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 85,315 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 124,098 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 125,933 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 125,662 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 84,286 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 262,319 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 119,077 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 110,014 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 90,912 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 57,050 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 106,345 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 63,912 |
| Biggest English Cities by Century | 0 | - | 4.90 | 104,796 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 163,710 |
| Flags to Largest Cities | 0 | - | 4.54 | 37,297 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 107,752 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 92,192 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 218,591 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 45,020 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,651 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,216 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,794 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 125,016 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 64,992 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,595 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 82,731 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,203 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,201 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 39,795 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,887 |
| Countries of Europe by Population | 0 | - | 4.98 | 173,211 |
| Most Populous Countries by Year | 0 | - | 4.83 | 106,940 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 94,162 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 125,657 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 104,533 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 110,357 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 87,668 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,273 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,142 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 47,808 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.41 | 50,627 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,357 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 42,405 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,074 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 174,517 |
| Biggest Cities in Japan | 0 | - | 4.68 | 81,630 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,265 |
| Biggest Cities in France | 0 | - | 4.72 | 218,613 |
| Biggest Cities in Spain | 0 | - | 4.63 | 167,261 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 54,938 |
| Biggest Cities in Poland | 0 | - | 4.61 | 52,688 |
| Biggest Cities in the UK | 0 | - | 4.47 | 102,628 |
| Biggest Cities in China | 0 | - | 4.52 | 154,098 |
| Biggest Cities in Canada | 0 | - | 4.56 | 130,254 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,465 |
| Biggest Cities in India | 0 | - | 4.70 | 66,577 |
| Biggest Cities in Italy | 0 | - | 4.74 | 236,408 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 100,012 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 105,335 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 84,230 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 79,289 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 32,803 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 66,718 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 72,502 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 80,700 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 137,583 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 218,922 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 132,787 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 74,301 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 82,538 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 65,751 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,953 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,893 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 162,389 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 167,072 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,129 |
| Boundary Waters | 0 | - | 4.92 | 87,279 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 34,245 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 93,837 |
| Most Populous Islands | 0 | - | 4.78 | 120,836 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,001 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,111 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 227,485 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 179,064 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 189,055 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 101,562 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,182 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,578 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 156,717 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.64 | 63,160 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 71,733 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 21,718 |
| Biggest Nordic Cities | 0 | - | 4.38 | 61,156 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,329 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,407 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,297 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,502 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,007 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 52,067 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 38,280 |
