| Biggest Cities in the World | 0 | - | 4.91 | 775,729 |
| Biggest City by Time Zone | 0 | - | 4.87 | 64,471 |
| Biggest City in Every Country | 0 | - | 4.98 | 95,130 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 196,812 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 106,392 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 116,344 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 76,261 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 81,769 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 76,193 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,699 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 67,636 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 53,783 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 64,995 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 125,224 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 407,952 |
| Biggest Cities in the United States | 0 | - | 4.93 | 947,639 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 359,732 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.89 | 117,065 |
| Biggest Cities by Language | 0 | - | 4.95 | 228,035 |
| Largest City by Island | 0 | - | 4.90 | 69,645 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 69,264 |
| Most Populous World Capitals | 0 | - | 4.94 | 172,859 |
| Biggest European Cities by Century | 0 | - | 4.98 | 127,291 |
| Megacities on a World Map | 0 | - | 4.98 | 238,351 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 564,880 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,807 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 72,244 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 107,388 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 164,766 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 165,075 |
| Biggest Cities in Asia | 0 | - | 4.94 | 106,974 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,707 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 335,716 |
| Megacities on an Empty Map | 0 | - | 4.96 | 95,522 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 48,996 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 67,815 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 72,270 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 218,031 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 132,666 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 111,477 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 57,800 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,220 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,738 |
| Biggest City by Region | 0 | - | 4.50 | 35,609 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,484 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,722 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,990 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 82,310 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,982 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 162,902 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 121,247 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 156,278 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 44,204 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 114,519 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 77,462 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 38,797 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 113,072 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 60,349 |
| Biggest Cities in Europe | 0 | - | 4.70 | 534,198 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 142,561 |
| Biggest Cities in History | 0 | - | 4.52 | 88,142 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,621 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.86 | 54,990 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 102,628 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,785 |
| Biggest Cities in France - Extreme | 0 | - | 4.86 | 54,386 |
| Largest Nordic Cities on a Map | 0 | - | 4.82 | 35,934 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 67,713 |
| Biggest Cities in Germany | 0 | - | 4.95 | 286,980 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 122,068 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 114,592 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 107,013 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 120,365 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 140,517 |
| Biggest Cities Starting With P | 0 | - | 4.45 | 124,343 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 72,553 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,831 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,418 |
| Biggest Cities by Latitude | 0 | - | 4.78 | 27,321 |
| Biggest Cities by Trait #2 | 0 | - | 4.41 | 15,108 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 167,705 |
| Countries with Megacities | 0 | - | 4.99 | 234,740 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 193,864 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 110,126 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 132,604 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 77,762 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 314,366 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 91,421 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,447 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 94,363 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 46,240 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,415,570 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 372,444 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 72,540 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,617 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 40,633 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,862 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,710 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 160,080 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 103,433 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 85,439 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 124,268 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 126,096 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 125,863 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 84,476 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 262,717 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 119,372 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 110,114 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 91,111 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 57,207 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 106,485 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 63,985 |
| Biggest English Cities by Century | 0 | - | 4.90 | 104,887 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 163,914 |
| Flags to Largest Cities | 0 | - | 4.54 | 37,416 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 107,891 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 92,315 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 218,916 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 45,047 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,681 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,271 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,823 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 125,132 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,033 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,633 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 82,911 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,250 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,235 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 39,841 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,963 |
| Countries of Europe by Population | 0 | - | 4.98 | 173,801 |
| Most Populous Countries by Year | 0 | - | 4.83 | 107,275 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 94,248 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 126,099 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 104,815 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 110,570 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 87,893 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,323 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,210 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 47,889 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.41 | 50,701 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,393 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 42,519 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,111 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 174,618 |
| Biggest Cities in Japan | 0 | - | 4.68 | 81,710 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,352 |
| Biggest Cities in France | 0 | - | 4.70 | 218,983 |
| Biggest Cities in Spain | 0 | - | 4.63 | 167,536 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,021 |
| Biggest Cities in Poland | 0 | - | 4.61 | 52,783 |
| Biggest Cities in the UK | 0 | - | 4.47 | 102,798 |
| Biggest Cities in China | 0 | - | 4.52 | 154,430 |
| Biggest Cities in Canada | 0 | - | 4.56 | 130,410 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,522 |
| Biggest Cities in India | 0 | - | 4.70 | 66,667 |
| Biggest Cities in Italy | 0 | - | 4.74 | 236,741 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 100,137 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 105,454 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 84,313 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 79,373 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 32,878 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 66,773 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 72,563 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 80,764 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 137,681 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 219,223 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 132,985 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 74,433 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 82,668 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 65,848 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,070 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 95,052 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 162,595 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 167,319 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,232 |
| Boundary Waters | 0 | - | 4.92 | 87,367 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 34,323 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 94,042 |
| Most Populous Islands | 0 | - | 4.78 | 120,963 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,025 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,156 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 227,899 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 179,409 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 189,359 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 101,758 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,250 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,706 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 156,937 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.64 | 63,262 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 71,886 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 21,862 |
| Biggest Nordic Cities | 0 | - | 4.38 | 61,196 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,408 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,478 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,381 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,521 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,063 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 52,135 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 38,365 |
