| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,405 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,545 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,815 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,929 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,658 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,613 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,492 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,498 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,545 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,637 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,613 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,384 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,842 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,913 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,362 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,071 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,656 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,693 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,698 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,654 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,732 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,094 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,744 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,169 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,953 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,273 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,831 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,813 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,701 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 99,992 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,112 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,148 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,938 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,450 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,870 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,812 |
| Biggest Cities by Language | 0 | - | 4.96 | 240,088 |
| Largest City by Island | 0 | - | 4.87 | 71,144 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,450 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,681 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,399 |
| Megacities on a World Map | 0 | - | 4.98 | 251,339 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,338 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,882 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,974 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,734 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,644 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,191 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,011 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 54,911 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,216 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,310 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,802 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,695 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,531 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,289 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,931 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,961 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,597 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,169 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,601 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,507 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,658 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,604 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,003 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,978 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,260 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,107 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,705 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,582 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,164 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,312 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,657 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,047 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,330 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,156 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,065 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,038 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,007 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,926 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,753 |
| Biggest City by Region | 0 | - | 4.50 | 36,021 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,929 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,070 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,051 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,243 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,956 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,275 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,965 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,869 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,519 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,279 |
| Biggest Cities in History | 0 | - | 4.52 | 89,204 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,158 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,331 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,874 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,225 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,076 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,220 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,053 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,278 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,601 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,611 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,059 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,698 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,004 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,289 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,084 |
| US States Quiz | 0 | - | 5.00 | 16,723,724 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,786 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,958 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,952 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,743 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,519 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,826 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,868 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,608 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,074 |
| Biggest Cities in France | 0 | - | 4.69 | 222,606 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,042 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,702 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,779 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,507 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,012 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,260 |
| Biggest Cities in China | 0 | - | 4.53 | 157,229 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,386 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,000 |
| Biggest Cities in India | 0 | - | 4.70 | 67,386 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,706 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,970 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,199 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,990 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,881 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,464 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,985 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,684 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,479 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,269 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,452 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,618 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,400 |
| Cities of Ireland | 0 | - | 4.51 | 50,372 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,109 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,973 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,910 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,099 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,615 |
| US States with an Empty Map | 0 | - | 5.00 | 619,563 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,491 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,999 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,377 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,792 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,863 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,244 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,776 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,866 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,750 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,845 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,385 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,568 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,858 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,533 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,908 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,805 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,691 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,864 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,534 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,168 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,545 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,843 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 94,888 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,713 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,094 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,427 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,651 |
| Countries with Megacities | 0 | - | 4.99 | 247,636 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,501 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,219 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,901 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,148 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,784 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,570 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,899 |
| Cities in European Economic Areas on a Map | 0 | - | 4.69 | 17,064 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,564 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,814 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,736 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,432 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,518 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,684 |
| Rivers of the United States | 0 | - | 4.93 | 65,603 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,979 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,991 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,801 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,195 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,602 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,209 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,035 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,299 |
