| Biggest Cities in the World | 0 | - | 4.91 | 807,384 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,312 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,622 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,626 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,142 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,266 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,003 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,969 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,737 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,743 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,996 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,423 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,141 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,739 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,878 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,340 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,596 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,846 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,824 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,915 |
| Largest City by Island | 0 | - | 4.87 | 72,596 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,519 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,920 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,284 |
| Megacities on a World Map | 0 | - | 4.98 | 257,598 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,436 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,872 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,871 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,858 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,905 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,281 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,419 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,499 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,559 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,395 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,642 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,753 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,845 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,767 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,742 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,528 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,454 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,116 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,384 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,045 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,188 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,979 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,777 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,270 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,228 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,599 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,041 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,651 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,498 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,068 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,708 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,627 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,880 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,630 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,230 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,923 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,229 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,689 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,189 |
| Biggest City by Region | 0 | - | 4.50 | 36,426 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,385 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,333 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,465 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,636 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,950 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,609 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,088 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,573 |
| Biggest Cities in History | 0 | - | 4.52 | 90,729 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,246 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,655 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,744 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,254 |
| Biggest Cities Starting With A | 0 | - | 4.63 | 125,295 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,280 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,107 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,728 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,373 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,910 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,118 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,624 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,857 |
| Biggest Cities in France | 0 | - | 4.72 | 225,706 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,410 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,374 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,367 |
| Biggest Cities in the UK | 0 | - | 4.48 | 106,004 |
| Biggest Cities in China | 0 | - | 4.53 | 160,279 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,703 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,525 |
| Biggest Cities in India | 0 | - | 4.64 | 68,138 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,802 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,221 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,237 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,888 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,922 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,035 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,209 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,110 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,156 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,936 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,852 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,555 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,986 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,734 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,042 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,522 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,246 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,511 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,652 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,278 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,726 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,674 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,458 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,623 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,136 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,612 |
| Countries with Megacities | 0 | - | 4.99 | 268,091 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,259 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,394 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,595 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,494 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,623 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 49,090 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,114 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,599 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,216 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,127 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,039 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,568 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,453 |
| Cities of Ireland | 0 | - | 4.51 | 50,976 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,241 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,010 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,971 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,907 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,603 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,502 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,970 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,607 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,497 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,590 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,875 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,139 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,404 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,755 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,664 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,992 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,150 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,757 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,440 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,128 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,795 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,543 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,616 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,954 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,738 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,472 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,414 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,169 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,685 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,896 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,924 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,971 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,984 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,733 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,755 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,971 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,759 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,696 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,994 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,630 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,900 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,933 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,096 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,290 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,733 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,599 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,600 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,803 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.26 | 20,833 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,531 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,298 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,093 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,053 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,637 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,311 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,586 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,946 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,905 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,865 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,442 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,010 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,530 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,383 |
