| Biggest Cities in the World | 0 | - | 4.91 | 799,616 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,106 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,771 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,403 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,523 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,250 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,944 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,630 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,071 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,942 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,159 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,669 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,736 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,657 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,050 |
| Biggest Cities in the United States | 0 | - | 4.94 | 979,328 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,381 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,810 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,675 |
| Largest City by Island | 0 | - | 4.87 | 71,954 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,060 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,043 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,618 |
| Megacities on a World Map | 0 | - | 4.98 | 254,870 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,669 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,414 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,027 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,836 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,491 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,365 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,139 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,144 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,089 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,512 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,080 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,940 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,566 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,522 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,920 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,478 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,634 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,144 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,010 |
| Biggest City by Region | 0 | - | 4.50 | 36,247 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,159 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,202 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,363 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,307 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,429 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,251 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,267 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,408 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,398 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,540 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,299 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,905 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,199 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,340 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,693 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,753 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 161,007 |
| Biggest Cities in History | 0 | - | 4.52 | 90,214 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,705 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,229 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,269 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,436 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,823 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,492 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,686 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,420 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,699 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,483 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,057 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,477 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,175 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,064 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,075 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,830 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,560 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,657 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,634 |
| Countries with Megacities | 0 | - | 4.99 | 263,885 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,482 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,330 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,755 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,384 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,171 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,139 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,233 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,895 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,588 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,636 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,565 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,519 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,324 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,423 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,594 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,966 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,936 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,834 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,361 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,157 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,660 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,334 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,948 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,780 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,968 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,988 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,449 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,605 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,126 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,817 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,770 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,386 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,676 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,438 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,138 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,196 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,164 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,890 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,040 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,878 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,269 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,698 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,482 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,998 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 89,571 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,005 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,859 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,420 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,945 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,020 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,713 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,643 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,531 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,969 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,224 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,388 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,929 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,830 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,130 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,858 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,573 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,117 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,475 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,133 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,209 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,357 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,147 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,458 |
| Biggest Cities in France | 0 | - | 4.70 | 224,147 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,268 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,026 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,947 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,319 |
| Biggest Cities in China | 0 | - | 4.53 | 158,780 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,929 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,242 |
| Biggest Cities in India | 0 | - | 4.64 | 67,786 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,220 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,178 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,406 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,558 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,614 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,740 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,522 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,496 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,710 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,291 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,073 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,372 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,233 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,807 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,285 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,580 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,302 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,042 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,211 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,555 |
| Boundary Waters | 0 | - | 4.92 | 88,506 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,195 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,162 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,547 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,509 |
| Most Populous Islands | 0 | - | 4.80 | 122,969 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,308 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,545 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,035 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,975 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,433 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,921 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,839 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,477 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,357 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,249 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,037 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,454 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,597 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,346 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,242 |
