| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,920 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,241 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,337 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,955 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,885 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,806 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,697,062 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,894 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,140 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,975 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,501 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,374 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,974 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,373 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,107 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,433 |
| Biggest Cities in the World | 0 | - | 4.92 | 804,312 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,466 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,545 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,260 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 115,628 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,509 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,095 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,339 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,677 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,335 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,797 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,754 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,024 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,288 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,406 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,632 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,142 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,136 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,814 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,527 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,593 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,117 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,268 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,076 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,471 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,620 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,437 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,478 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,578 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,943 |
| Largest City by Island | 0 | - | 4.87 | 72,342 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,357 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,557 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,044 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,456 |
| Megacities on a World Map | 0 | - | 4.98 | 256,487 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,192 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,260 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,698 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,540 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,308 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,934 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,882 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,744 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,510 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,130 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,477 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,402 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,820 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,932 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,110 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,871 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,066 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,459 |
| US States Quiz | 0 | - | 5.00 | 16,971,086 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,812 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,848 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,475 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,303 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,011 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,707 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,721 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,451 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,917 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,335 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,390 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,650 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,265 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,929 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,425 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,479 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,725 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,384 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,512 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,225 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,983 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,487 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,387 |
| States of Mexico | 0 | - | 4.96 | 177,815 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,830 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,345 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,033 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,830 |
| Countries with Megacities | 0 | - | 4.99 | 266,451 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,535 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,928 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,836 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,045 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,054 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,362 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,316 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,564 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,954 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,779 |
| Pixelated United States Map | 0 | - | 4.88 | 94,712 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,901 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,129 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,129 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,165 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,156 |
| U.S. States By Population | 0 | - | 4.92 | 154,033 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,077 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,804 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,772 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,482 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,002 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,004 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,624 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,969 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,125 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,559 |
| Biggest City by Region | 0 | - | 4.50 | 36,362 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,292 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,475 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,066 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,175 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,285 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,426 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,501 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,539 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,145 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,412 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,219 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,837 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,303 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,534 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,269 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,047 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,429 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,870 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,340 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,353 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,956 |
| US States with an Empty Map | 0 | - | 5.00 | 627,801 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,864 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,165 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,983 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,209 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,792 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,527 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,300 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,808 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,092 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,495 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,652 |
| Biggest Cities in History | 0 | - | 4.52 | 90,510 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,840 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,824 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,576 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,507 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,332 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,657 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,623 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,640 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,423 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,711 |
| Biggest Cities in France | 0 | - | 4.70 | 225,067 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,958 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,219 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,223 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,711 |
| Biggest Cities in China | 0 | - | 4.53 | 159,661 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,387 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,417 |
| Biggest Cities in India | 0 | - | 4.64 | 68,006 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,142 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,127 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,033 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,086 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,874 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,474 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,951 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,609 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,490 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,296 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,741 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,355 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,701 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,164 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,547 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,255 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,852 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,174 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,529 |
