| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,022 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,053 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,226 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,570 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,474 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,034 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,686,498 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,627 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,889 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,735 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,799 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,559 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,873 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,496 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,956 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,898 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,467 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,812 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,908 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,773 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,337 |
| Biggest Cities in the United States | 0 | - | 4.94 | 975,420 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,520 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,717 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,450 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,889 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,096 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,867 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,766 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,355 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,193 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,126 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,440 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,664 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,763 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,720 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,361 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,833 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,328 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,799 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,013 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,977 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,335 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,668 |
| Largest City by Island | 0 | - | 4.87 | 71,660 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,778 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,658 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,236 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,956 |
| Megacities on a World Map | 0 | - | 4.98 | 253,332 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,628 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,973 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,204 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,679 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,507 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,198 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,968 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,066 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,242 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,619 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,943 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,139 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,319 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,464 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,827 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,890 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,097 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,492 |
| US States Quiz | 0 | - | 5.00 | 16,831,448 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,647 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,876 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,833 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,381 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,237 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.69 | 64,107 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,673 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,593 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,158 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,788 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,392 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,493 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,540 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,322 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,215 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,470 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,789 |
| States of Mexico | 0 | - | 4.95 | 175,504 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,072 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,072 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,670 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,977 |
| Countries with Megacities | 0 | - | 4.99 | 258,793 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,850 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,964 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,133 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,969 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,344 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,512 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,257 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,023 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,320 |
| Pixelated United States Map | 0 | - | 4.87 | 94,072 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,641 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,165 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,206 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,693 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,962 |
| U.S. States By Population | 0 | - | 4.92 | 153,007 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,186 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,313 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,128 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,102 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,462 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,392 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,043 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,547 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,919 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,445 |
| Biggest City by Region | 0 | - | 4.50 | 36,119 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,050 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,956 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,150 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,323 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,161 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,358 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,829 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,129 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,762 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,666 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,018 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,072 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,138 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,540 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,596 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,106 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,336 |
| US States with an Empty Map | 0 | - | 5.00 | 623,266 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,726 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,386 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,894 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,541 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,377 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,664 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,065 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,257 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,355 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,914 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,058 |
| Biggest Cities in History | 0 | - | 4.52 | 89,999 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 75,766 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,346 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,013 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,741 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,471 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,352 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,851 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,011 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,390 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,191 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,915 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,303 |
| Biggest Cities in France | 0 | - | 4.70 | 223,585 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,839 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,893 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,784 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,062 |
| Biggest Cities in China | 0 | - | 4.52 | 158,217 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,160 |
| Biggest Cities in India | 0 | - | 4.63 | 67,655 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,736 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,109 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,449 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,200 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,515 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,101 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,868 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,618 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,424 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,479 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,394 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,804 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,833 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,133 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,375 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,494 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,201 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,694 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,965 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,148 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,819 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,718 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,091 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,072 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,416 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,153 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,430 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,072 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,275 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,776 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,893 |
