| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,187 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,400 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,648 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,691 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,390 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,479 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,751 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,797 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,192 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,531 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,120 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,257 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,571 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,549 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,707 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,771 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,820 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,412 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,355 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,456 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,508 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,415 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,493 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,991 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,722 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,103 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,686 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,620 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,448 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 99,700 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,793 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,601 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,759 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,311 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,764 |
| Largest City by Island | 0 | - | 4.87 | 70,986 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,336 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,458 |
| Biggest European Cities by Century | 0 | - | 4.98 | 141,287 |
| Megacities on a World Map | 0 | - | 4.98 | 250,721 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,194 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,175 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,888 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,747 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,798 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,675 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,595 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,159 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,577 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,852 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,095 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,072 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,629 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,782 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,074 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,909 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,832 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,735 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,448 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,214 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,423 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,911 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,964 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,459 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,211 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,927 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,942 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,025 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,370 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,974 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,506 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,073 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,265 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,565 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,924 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,085 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,010 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,848 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,862 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,889 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,669 |
| Biggest City by Region | 0 | - | 4.50 | 35,982 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,881 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,003 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,211 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,898 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,244 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,198 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,300 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,961 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,845 |
| The Most Populous U.S. City by Category | 0 | - | 4.35 | 22,249 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,525 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,928 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,703 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,315 |
| Biggest Cities in History | 0 | - | 4.52 | 89,081 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,099 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,167 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 63,966 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,174 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,975 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,448 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,918 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,544 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,852 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,090 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,942 |
| US States Quiz | 0 | - | 5.00 | 16,688,137 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,270 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,397 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,749 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,747 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,487 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,001 |
| Biggest Cities in France | 0 | - | 4.69 | 221,919 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,736 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,619 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,421 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,096 |
| Biggest Cities in China | 0 | - | 4.53 | 156,899 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,939 |
| Biggest Cities in India | 0 | - | 4.70 | 67,302 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,343 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,519 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,883 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,348 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,271 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,842 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,439 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,971 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,596 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,659 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,461 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,905 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,889 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,187 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,710 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,745 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,391 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,552 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,703 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,943 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,305 |
| Cities of Ireland | 0 | - | 4.51 | 50,311 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,085 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,240 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,350 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,925 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,864 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,276 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,700 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,149 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,401 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,960 |
| Countries with Megacities | 0 | - | 4.99 | 246,413 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,874 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,776 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,331 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,732 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,841 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,198 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,738 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,720 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,372 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,784 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,837 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,702 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,552 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,595 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,707 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,391 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,760 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,987 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,331 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,782 |
| US States with an Empty Map | 0 | - | 5.00 | 618,421 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,615 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,500 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,843 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,364 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,582 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,515 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,868 |
| Cities in European Economic Areas on a Map | 0 | - | 4.67 | 16,906 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,546 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,739 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,260 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,244 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,396 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,506 |
| Rivers of the United States | 0 | - | 4.93 | 65,452 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,536 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,813 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,588 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,977 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,521 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,058 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,763 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,784 |
