| Biggest Cities in the World | 0 | - | 4.91 | 800,898 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,271 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,011 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,863 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,725 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,797 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,120 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,757 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,715 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,379 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,247 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,159 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,272 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,820 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,899 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,099 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,003 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,749 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,229 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,262 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,054 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,964 |
| Largest City by Island | 0 | - | 4.87 | 72,061 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,162 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,195 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,760 |
| Megacities on a World Map | 0 | - | 4.98 | 255,324 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,510 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,182 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,715 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,213 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,693 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,530 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,348 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,215 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,706 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,175 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,359 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,000 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,629 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,543 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,810 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,545 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,085 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,733 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,043 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,037 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,690 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,445 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,489 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,251 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,482 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,615 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,668 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,783 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,560 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,528 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,749 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,423 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,435 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,622 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,297 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,530 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,966 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,990 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,524 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,223 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,637 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 41,273 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,156 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,651 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,267 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,988 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,915 |
| Countries with Megacities | 0 | - | 4.99 | 264,597 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,751 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,474 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,014 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,548 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,205 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,743 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,565 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,469 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,044 |
| Biggest City by Region | 0 | - | 4.50 | 36,282 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,193 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,225 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,379 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,360 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,455 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,060 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,944 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,440 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,198 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,874 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,153 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,563 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,737 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,701 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,730 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,153 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,334 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,492 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,986 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,221 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,754 |
| Biggest Cities in History | 0 | - | 4.52 | 90,298 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,105 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,716 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,483 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,470 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,581 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,358 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,658 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,884 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,535 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,512 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,772 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,565 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,168 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,590 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,275 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,230 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,510 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,300 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,911 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,337 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,641 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,410 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,192 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,353 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,325 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,229 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,653 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,335 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,574 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,522 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,583 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,152 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,898 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,083 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,817 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,774 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,093 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,512 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,811 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,847 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,573 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,632 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,025 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,507 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,052 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,888 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,719 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,445 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,516 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,013 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,376 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,908 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,862 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,689 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 302,969 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,908 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,301 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,522 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,968 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,394 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,870 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,119 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,191 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,912 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,622 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,296 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,348 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,999 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,054 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,868 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,267 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,194 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,437 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,221 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,527 |
| Biggest Cities in France | 0 | - | 4.70 | 224,395 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,425 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,081 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,212 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,014 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,410 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,430 |
| Biggest Cities in China | 0 | - | 4.53 | 159,039 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,055 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,303 |
| Biggest Cities in India | 0 | - | 4.64 | 67,843 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,478 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,946 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,952 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,420 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,203 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,764 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,431 |
