| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,233 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,228 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,364 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,747 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,768 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,183 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,006 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,428 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,404 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,910 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,033 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,933 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,880 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,459 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,908 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,277 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,692 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,764 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,270 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,470 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,729 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,490 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,822 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,280 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,267 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,002 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,378 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,590 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,239 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,334 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,962 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,052 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,830 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,353 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,936 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,491 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,339 |
| Largest City by Island | 0 | - | 4.87 | 71,834 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,932 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,906 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,451 |
| Megacities on a World Map | 0 | - | 4.98 | 254,415 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 85,104 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,323 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,886 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,952 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,815 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,376 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,577 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,166 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,786 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,306 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,087 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,054 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,809 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,536 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,669 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,165 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,378 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,147 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,202 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,734 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,371 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,931 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,175 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 46,032 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,190 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,665 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,538 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,164 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,893 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,508 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,547 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,240 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,316 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 116,934 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,467 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,288 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,964 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,545 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,077 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,969 |
| Biggest City by Region | 0 | - | 4.50 | 36,209 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,131 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,438 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,181 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,346 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,237 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,406 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,062 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,526 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,554 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,630 |
| Biggest Cities in History | 0 | - | 4.52 | 90,124 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,304 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,466 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,977 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,396 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,564 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,452 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,375 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,380 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,890 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,323 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,618 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,386 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,956 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,358 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,082 |
| US States Quiz | 0 | - | 5.00 | 16,868,225 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,824 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,184 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,232 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,823 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,973 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,075 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,290 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,061 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,386 |
| Biggest Cities in France | 0 | - | 4.70 | 223,929 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,097 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,983 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,112 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,881 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,317 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,218 |
| Biggest Cities in China | 0 | - | 4.53 | 158,525 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,207 |
| Biggest Cities in India | 0 | - | 4.64 | 67,731 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,029 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,904 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,121 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,014 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,033 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,587 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,056 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,815 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,548 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,601 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,593 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,816 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,574 |
| Cities of Ireland | 0 | - | 4.51 | 50,650 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,184 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,192 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,067 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,147 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,511 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,831 |
| US States with an Empty Map | 0 | - | 5.00 | 624,358 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,228 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,210 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,740 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,547 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,949 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,398 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,933 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,364 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,830 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,978 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,027 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,122 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,922 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,983 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,721 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,295 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,101 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,558 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,229 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,785 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,400 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,164 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,981 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,569 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,143 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,645 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,384 |
| Countries with Megacities | 0 | - | 4.99 | 263,049 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,221 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,192 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,517 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,232 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,490 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,811 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,009 |
| Biggest Cities Ever Under Danish Rule | 0 | - | 4.49 | 16,219 |
| Cities in European Economic Areas on a Map | 0 | - | 4.69 | 17,605 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,629 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,215 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,320 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,296 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,087 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,407 |
| Rivers of the United States | 0 | - | 4.93 | 66,177 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,825 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,626 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,617 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,967 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,889 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,880 |
