| Biggest Cities in Asia | 0 | - | 4.94 | 94,928 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 42,896 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 108,228 |
| Biggest Cities in the World | 0 | - | 4.89 | 677,866 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,065 |
| Biggest Cities in France - Extreme | 0 | - | 4.88 | 42,893 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 367,018 |
| Biggest Cities in the United States | 0 | - | 4.92 | 807,707 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 320,602 |
| Biggest City by Time Zone | 0 | - | 4.82 | 53,292 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,434 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 167,063 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 90,727 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 94,337 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 53,575 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,301 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 70,066 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 64,109 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 41,952 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 301,202 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 96,037 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 58,994 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 54,327 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 104,903 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 74,548 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 27,974 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,108 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,341 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,455 |
| Most Populous World Capitals | 0 | - | 4.92 | 146,464 |
| Biggest European Cities by Century | 0 | - | 4.97 | 117,641 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,475 |
| Megacities on a World Map | 0 | - | 4.98 | 218,998 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 43,649 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 508,405 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,367 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 62,681 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,811 |
| 500 Biggest US Cities | 0 | - | 4.85 | 96,153 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 82,877 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 149,919 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 153,624 |
| Biggest Cities in Europe | 0 | - | 4.74 | 456,640 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 50,520 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,334 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,732 |
| Biggest Cities in Germany | 0 | - | 4.94 | 260,665 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,326 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 36,975 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,058 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,055 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,358 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 37,800 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,430 |
| Biggest English Cities by Century | 0 | - | 4.89 | 98,870 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,301 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,189 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,437 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.64 | 36,451 |
| Biggest Cities in Japan | 0 | - | 4.65 | 74,859 |
| Biggest Cities in China | 0 | - | 4.64 | 136,730 |
| Biggest Cities in India | 0 | - | 4.72 | 61,907 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.46 | 59,961 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,294 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 42,870 |
| Biggest City by Region | 0 | - | 4.48 | 33,201 |
| Most Populous 2nd Cities | 0 | - | 4.72 | 52,977 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,199 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 67,640 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,517 |
| Ten Northernmost Megacities | 0 | - | 4.49 | 46,794 |
| Ten Southernmost Megacities | 0 | - | 4.80 | 45,984 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.74 | 63,369 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 135,666 |
| Biggest European Cities by Letter | 0 | - | 4.64 | 118,040 |
| Biggest City by Island | 0 | - | 4.57 | 45,594 |
| Biggest Cities in History | 0 | - | 4.49 | 79,409 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 67,644 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.59 | 62,705 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 70,235 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,479 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 39,850 |
| U.S. States by Second Most Populous City | 0 | - | 4.44 | 40,021 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,765 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.79 | 51,723 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,271 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,502 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 111,004 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 106,101 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 96,671 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 109,500 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 127,446 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 113,449 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 61,240 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,624 |
| Largest Nordic Cities on a Map | 0 | - | 4.72 | 22,775 |
| Biggest Cities in Russia | 0 | - | 4.49 | 75,879 |
| Biggest Cities in France | 0 | - | 4.76 | 197,250 |
| Biggest Cities in Spain | 0 | - | 4.50 | 152,125 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,646 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,603 |
| Biggest Cities in the UK | 0 | - | 4.45 | 92,492 |
| Cities of Ireland | 0 | - | 4.43 | 39,429 |
| Biggest Cities in Canada | 0 | - | 4.67 | 119,496 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,235 |
| Biggest Cities in Italy | 0 | - | 4.65 | 215,251 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.20 | 16,766 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,077 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,759 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 69,902 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,836 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 26,958 |
| Biggest City by Region #2 | 0 | - | 4.45 | 22,841 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,121 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,044 |
| Northernmost Major City by Country | 0 | - | 4.55 | 30,663 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 98,421 |
| Biggest Nordic Cities | 0 | - | 4.37 | 59,513 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 150,987 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 55,980 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,105 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 28,571 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,021 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,658 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 192,057 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,301,153 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,370 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,997 |
| Countries with Megacities | 0 | - | 4.99 | 194,519 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,261 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,757 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,546 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,622 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,800 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,480 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 36,786 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 88,982 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,356 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,111 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,315 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,053 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.45 | 28,351 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,662 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,742 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,710 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 146,502 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,088 |
| Biggest Cities Starting With K | 0 | - | 4.29 | 78,155 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 113,738 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 115,308 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 59,820 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,220 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,275 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,259 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,156 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,451 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,349 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 49,964 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 64,616 |
| Biggest Cities by Trait #2 | 0 | - | 4.37 | 14,065 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 12,954 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 28,727 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,066 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,439 |
| Flags to Largest Cities | 0 | - | 4.57 | 30,746 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,129 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 82,788 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.36 | 69,290 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,600 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,261 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,725 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,480 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,751 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,162 |
| Biggest U.S. Cities A-Z | 0 | - | 4.59 | 121,633 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 27,738 |
| Biggest Cities in California | 0 | - | 4.35 | 129,706 |
| Biggest Cities in Florida | 0 | - | 4.19 | 67,018 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,526 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,497 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,487 |
| Biggest Cities in Texas | 0 | - | 4.26 | 110,805 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,229 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,394 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,227 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,556 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,380 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,519 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,384 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,437 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 27,654 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,190 |
| Cities on Interstate 90 on a Map | 0 | - | 4.39 | 25,016 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 203,914 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,764 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,164 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,594 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,299 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,526 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,231 |
