| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 656,200 |
| Biggest City in Every Country | 0 | - | 4.98 | 75,551 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 164,105 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 89,462 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 92,230 |
| Biggest Cities with Exceptions | 0 | - | 4.85 | 51,978 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 57,247 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 363,488 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 62,753 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 41,348 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.89 | 58,151 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 53,504 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 103,545 |
| Biggest Cities in the United States | 0 | - | 4.90 | 799,975 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 318,481 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.85 | 107,323 |
| Biggest Cities by Language | 0 | - | 4.95 | 211,174 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,141 |
| Most Populous World Capitals | 0 | - | 4.91 | 144,474 |
| Biggest European Cities by Century | 0 | - | 4.96 | 116,969 |
| Megacities on a World Map | 0 | - | 4.98 | 217,635 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 504,058 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.97 | 58,912 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 61,956 |
| Every 1,000,000+ City on a Map | 0 | - | 4.98 | 80,824 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 148,515 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 152,747 |
| Biggest Cities in Asia | 0 | - | 4.91 | 93,961 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 42,359 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,035 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 40,407 |
| Biggest Cities Starting With A | 0 | - | 4.47 | 110,240 |
| Biggest Cities Starting With D | 0 | - | 4.47 | 105,532 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 95,883 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 108,466 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 126,335 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 112,601 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 62,623 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 66,653 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 195,773 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 107,185 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 298,549 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 94,833 |
| Biggest City by Time Zone | 0 | - | 4.80 | 52,862 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.46 | 97,045 |
| Biggest Cities by Trait #1 | 0 | - | 4.42 | 42,672 |
| Biggest City by Region | 0 | - | 4.45 | 32,848 |
| Most Populous 2nd Cities | 0 | - | 4.52 | 52,580 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 129,308 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.85 | 43,396 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 88,217 |
| Largest World Capitals with Exceptions | 0 | - | 4.70 | 50,072 |
| Two Largest Cities by First Two Letters | 0 | - | 4.63 | 66,636 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,218 |
| 500 Biggest US Cities | 0 | - | 4.83 | 94,468 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 51,037 |
| Ten Northernmost Megacities | 0 | - | 4.42 | 46,599 |
| Ten Southernmost Megacities | 0 | - | 4.78 | 45,758 |
| Biggest Cities Starting With B | 0 | - | 4.29 | 145,472 |
| Biggest Cities Starting With C | 0 | - | 4.03 | 95,601 |
| Biggest Cities Starting With K | 0 | - | 4.27 | 77,638 |
| Biggest Cities Starting With S | 0 | - | 4.35 | 112,761 |
| Biggest Cities Starting With T | 0 | - | 4.28 | 114,517 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 135,032 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 107,768 |
| Biggest Cities in Europe | 0 | - | 4.51 | 445,469 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 89,710 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 42,144 |
| Biggest Cities in Germany | 0 | - | 4.94 | 258,312 |
| Biggest City by Island | 0 | - | 4.51 | 45,397 |
| Biggest Cities in History | 0 | - | 4.47 | 78,678 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 67,298 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.47 | 39,615 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 27,804 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 64,003 |
| Fastest Growing U.S. Cities | 0 | - | 4.32 | 69,624 |
| Second Biggest Cities Quiz | 0 | - | 4.20 | 38,711 |
| Biggest Coastal City by Country | 0 | - | 4.56 | 26,878 |
| Biggest City by Region #2 | 0 | - | 4.45 | 22,623 |
| Biggest Cities by Latitude | 0 | - | 4.74 | 26,032 |
| Northernmost Major City by Country | 0 | - | 4.53 | 30,484 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 36,678 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.88 | 73,241 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 39,813 |
| Cities of China (With Some Help) | 0 | - | 4.88 | 27,770 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,389 |
| Countries with Megacities | 0 | - | 4.99 | 191,996 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,900 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,718 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 92,049 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 61,632 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 242,188 |
| Largest World Cities With Four Letters | 0 | - | 4.43 | 42,888 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.70 | 67,868 |
| Biggest Mediterranean Cities | 0 | - | 4.60 | 74,102 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.53 | 36,081 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,291,636 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,484 |
| Biggest English-Speaking Cities | 0 | - | 4.38 | 135,117 |
| Biggest English Cities by Century | 0 | - | 4.91 | 98,246 |
| Biggest Cities in the World - 2100 | 0 | - | 4.26 | 79,078 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,691 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.68 | 97,837 |
| Five Biggest Cities by Country | 0 | - | 4.50 | 149,939 |
| Biggest World Cities A-Z | 0 | - | 4.42 | 189,424 |
| Capitals of the Most Populated Countries | 0 | - | 4.97 | 115,348 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 64,603 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 241,718 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 107,385 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,024 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 63,768 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 49,469 |
| Biggest European Cities by Letter | 0 | - | 4.52 | 117,482 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.51 | 62,511 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 55,014 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 39,730 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,565 |
| Biggest Cities by Trait #2 | 0 | - | 4.33 | 13,973 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,140 |
| Countries of Europe by Population | 0 | - | 4.98 | 122,424 |
| Most Populous Country by First Two Letters | 0 | - | 4.68 | 65,957 |
| Demographics Multiple Choice | 0 | - | 4.70 | 39,337 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 77,815 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 94,616 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 73,634 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 91,497 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 63,777 |
| Jewish Cities Quiz | 0 | - | 4.31 | 58,928 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 59,611 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 69,755 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 60,920 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 50,226 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,492 |
| Biggest Cities Near a Border | 0 | - | 4.19 | 19,457 |
| Flags to Largest Cities | 0 | - | 4.63 | 30,134 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 34,951 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 18,998 |
| Biggest Cities in Japan | 0 | - | 4.70 | 74,219 |
| Biggest Cities in Russia | 0 | - | 4.46 | 75,458 |
| Biggest Cities in France | 0 | - | 4.62 | 195,492 |
| Biggest Cities in Spain | 0 | - | 4.48 | 150,965 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,175 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,152 |
| Biggest Cities in the UK | 0 | - | 4.41 | 91,652 |
| Biggest Cities in China | 0 | - | 4.44 | 134,946 |
| Cities of Ireland | 0 | - | 4.43 | 39,155 |
| Biggest Cities in Canada | 0 | - | 4.68 | 118,727 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 42,970 |
| Biggest Cities in India | 0 | - | 4.61 | 61,460 |
| Biggest Cities in Italy | 0 | - | 4.63 | 213,526 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.31 | 82,230 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.30 | 68,820 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 76,895 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.09 | 82,576 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.12 | 65,425 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.14 | 61,172 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.19 | 59,427 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 66,842 |
| Biggest U.S. Cities A-Z | 0 | - | 4.51 | 121,221 |
| Most Populous Countries in 2050 | 0 | - | 4.89 | 202,438 |
| First Countries to Reach 5 Million People | 0 | - | 4.87 | 108,060 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 75,138 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 52,995 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.91 | 66,143 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 85,634 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 141,975 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 138,206 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.60 | 55,684 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.51 | 73,711 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.70 | 42,272 |
| Biggest Cities in Brazil | 0 | - | 4.54 | 47,628 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 62,262 |
| All Cities in China with Population of 1 Million | 0 | - | 4.62 | 37,196 |
| Most Populous Islands | 0 | - | 4.64 | 111,160 |
| Islands by Largest City #1 | 0 | - | 4.44 | 81,803 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 201,475 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 158,054 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 154,639 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 79,239 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 83,141 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 143,706 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 48,546 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 63,157 |
| Biggest Nordic Cities | 0 | - | 4.35 | 59,379 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.37 | 29,648 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 28,439 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,293 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,540 |
| Most Populous Countries in 1900 | 0 | - | 4.89 | 160,289 |
| Boundary Waters | 0 | - | 4.92 | 80,049 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 72,905 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 49,966 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.29 | 36,387 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.21 | 87,104 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.61 | 24,219 |
| Largest Nordic Cities on a Map | 0 | - | 4.63 | 22,159 |
| Biggest Urban Areas in the UK | 0 | - | 4.36 | 166,299 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.42 | 28,168 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.18 | 20,978 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.88 | 55,539 |
