| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,235 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,428 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,701 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,745 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,450 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,512 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,182 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,941 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,101 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,275 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,556 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,279 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,617 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,614 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,813 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,817 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,945 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,458 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,418 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,493 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,545 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,512 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,548 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,035 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,759 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,143 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,721 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,652 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,492 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 99,755 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,266 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,712 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,793 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,253 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,091 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,392 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,816 |
| Largest City by Island | 0 | - | 4.87 | 71,015 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,368 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,511 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,692 |
| Megacities on a World Map | 0 | - | 4.98 | 250,872 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,218 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,776 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,841 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,691 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,607 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,162 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,674 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,865 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,122 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,119 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,747 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,641 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,466 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,233 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,807 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,921 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,195 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,981 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,036 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,469 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,478 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,274 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,969 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,936 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,992 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,040 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,438 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,525 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,108 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,273 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,582 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,987 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,996 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,097 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,022 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,889 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,895 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,894 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,683 |
| Biggest City by Region | 0 | - | 4.50 | 35,990 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,892 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,984 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,008 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,216 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,912 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,248 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,936 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,739 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,362 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,215 |
| Biggest Cities in History | 0 | - | 4.52 | 89,107 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,113 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,307 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,849 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,181 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 63,989 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,187 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,994 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,255 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,543 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,482 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,946 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,577 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,891 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,132 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,973 |
| US States Quiz | 0 | - | 5.00 | 16,695,415 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,354 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,919 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,908 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,715 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,415 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,765 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,775 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,508 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,013 |
| Biggest Cities in France | 0 | - | 4.69 | 221,985 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,786 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,637 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,720 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,434 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,955 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,130 |
| Biggest Cities in China | 0 | - | 4.53 | 156,976 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,330 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,943 |
| Biggest Cities in India | 0 | - | 4.70 | 67,318 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,401 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,577 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,921 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,592 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,856 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,444 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,974 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,663 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,462 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,204 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,417 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,574 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,377 |
| Cities of Ireland | 0 | - | 4.51 | 50,323 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,092 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,934 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,878 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,277 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,860 |
| US States with an Empty Map | 0 | - | 5.00 | 618,634 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,657 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,525 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,299 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,627 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,848 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,213 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,743 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,765 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,723 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,798 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,272 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,384 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,839 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,321 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,741 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,579 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,616 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,747 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,421 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,053 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,379 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,795 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,677 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,545 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,893 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,380 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,057 |
| Countries with Megacities | 0 | - | 4.99 | 246,636 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,980 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,843 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,408 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,781 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,630 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,531 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,876 |
| Cities in European Economic Areas on a Map | 0 | - | 4.68 | 16,937 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,555 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,764 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,320 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,286 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,422 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,544 |
| Rivers of the United States | 0 | - | 4.93 | 65,493 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,625 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,841 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,632 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,023 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,536 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,090 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,795 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,857 |
