| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,252 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,806 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,843 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,435 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,488 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,101 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,462 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,338 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,025 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.99 | 78,369 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,067 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,787 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,446 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,718 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,755 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,850 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,807 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,673 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,682 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,361 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,786 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,818 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,926 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,439 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,798 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,262 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,510 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,143 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,256 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,071 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,139 |
| U.S. Cities With The Most Top Census Appearances | 0 | - | 4.67 | 11,348 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,009 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,954 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,738 |
| Countries with Megacities | 0 | - | 4.99 | 266,286 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,464 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,294 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,876 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,758 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,985 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 51,842 |
| Biggest Cities in the World | 0 | - | 4.92 | 804,045 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,633 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,971 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 30,007 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,960 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,591 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,432 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,544 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,195 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,638 |
| US States and State Capitals | 0 | - | 4.99 | 164,734 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,461 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,209 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,314 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,187 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,727 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,210 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,500 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,790 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,067 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,842 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,130 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,495 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,619 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,750 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,122 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,466 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,411 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,455 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,764 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,704 |
| Largest City by Island | 0 | - | 4.87 | 72,317 |
| Biggest Cities in History | 0 | - | 4.52 | 90,489 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,803 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,533 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,035 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,942 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,260 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,244 |
| Megacities on a World Map | 0 | - | 4.98 | 256,384 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,598 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,119 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,130 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,680 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,506 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,774 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,505 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,570 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,094 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,232 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,879 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,975 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,644 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.96 | 39,910 |
| 500 Biggest Cities in the World on a Map | 0 | - | 4.97 | 123,651 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,182 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,473 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,615 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,756 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,432 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,108 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,445 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,781 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,639 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,670 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,288 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,848 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,500 |
| Name a City - European Countries | 0 | - | 4.90 | 65,995 |
| Europe Capital to Country | 0 | - | 4.99 | 251,699 |
| Asia Capital to Country | 0 | - | 4.96 | 127,245 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,722 |
| European Capitals by Map | 0 | - | 4.99 | 141,575 |
| African Capitals by Map | 0 | - | 4.99 | 141,666 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,696 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,691 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,028 |
| European Coastal Capitals | 0 | - | 4.95 | 91,139 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,097 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,975 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,402 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,081 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,512 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,487 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,738 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,548 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,890 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,858 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,729 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,444 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,942 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,251 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,914 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,355 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,403 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,503 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,009 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,217 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,037 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,414 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 102,539 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,469 |
| All 50k+ Cities in Europe with a Map | 0 | - | 4.95 | 35,389 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,127 |
| Official Cities in the UK | 0 | - | 4.89 | 285,637 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,534 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,758 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,642 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,928 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,145 |
| Random U.S. City to State | 0 | - | 4.45 | 76,771 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,606 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,256 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,402 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,036 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,496 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,150 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,636 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,048 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,443 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,912 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,279 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,483 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,818 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,356 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,468 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,612 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 303,542 |
| US States Quiz | 0 | - | 5.00 | 16,966,874 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,323 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 633,930 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,773 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,509 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,979 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,916 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,357 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,715 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,895 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,850 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,137 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,096 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,131 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,313 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,903 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,268 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,691 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,913 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,779 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,751 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,821 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,736 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,904 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,609 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,891 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,709 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,229 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,119 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,745 |
