| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,596 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,109 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,057 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,039 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,916 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,902 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,944 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,681,324 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,416 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,026 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,861 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,538 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,936 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,781 |
| Megacities on a World Map | 0 | - | 4.98 | 251,978 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,932 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,316 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,549 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,854 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,004 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,968 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,724 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,237 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,670 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,160 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,753 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,896 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,678 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,652 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,866 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,963 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,790 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,465 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,088 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,818 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,329 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,293 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,287 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,218 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,544 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,236 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,959 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,371 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,974 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,896 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,277 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,247 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,349 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,643 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,189 |
| Europe Capital to Country | 0 | - | 4.99 | 248,601 |
| Official Cities in the UK | 0 | - | 4.89 | 281,568 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,837 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,543 |
| Random European Capital to Country | 0 | - | 4.98 | 189,639 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,794 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,755 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,318 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,634 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,518 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,322 |
| Which City in Canada? | 0 | - | 4.82 | 56,818 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,960 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,108 |
| US States Quiz | 0 | - | 5.00 | 16,756,500 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,531 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,488 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,480 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,737 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,294 |
| US States with an Empty Map | 0 | - | 5.00 | 620,690 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,468 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,880 |
| Flags of North and South America | 0 | - | 4.99 | 369,359 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,300 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,257 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,529 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,612 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,897 |
| North America Map Quiz | 0 | - | 4.98 | 245,990 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,417 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,248 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,437 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,860 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,305 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,335 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,757 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,319 |
| Central American Countries | 0 | - | 4.98 | 155,406 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,706 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,265 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,032 |
| Biggest Cities in France | 0 | - | 4.69 | 222,903 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,293 |
| Biggest Cities in California | 0 | - | 4.35 | 139,439 |
| Biggest Cities in China | 0 | - | 4.52 | 157,520 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,359 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,008 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,492 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,002 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,858 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,786 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,342 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,240 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,956 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,066 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,984 |
| World Capitals Quiz | 0 | - | 5.00 | 5,044,939 |
| Random Capital to Country | 0 | - | 4.99 | 2,582,404 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,699 |
| Random Country to Capital | 0 | - | 4.98 | 913,995 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,348 |
| World Capitals by Map | 0 | - | 5.00 | 284,424 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,652 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,697 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,055 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,977 |
| Coldest World Capitals | 0 | - | 4.95 | 133,168 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,167 |
| Random European Country to Capital | 0 | - | 4.92 | 147,743 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,931 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,347 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,471 |
| Asia Capital to Country | 0 | - | 4.96 | 126,056 |
| Random European City to Country | 0 | - | 4.69 | 116,844 |
| European Cities by Clue | 0 | - | 4.70 | 88,896 |
| Which City in Europe? | 0 | - | 4.83 | 106,934 |
| African Capitals by Map | 0 | - | 4.99 | 132,633 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,932 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,617 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,313 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,529 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,938 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,414 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,239 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,691 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,497 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,845 |
| European Coastal Capitals | 0 | - | 4.95 | 90,018 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,879 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,862 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,813 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,279 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,303 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,890 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,735 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,874 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,587 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,914 |
| Countries of Africa | 0 | - | 5.00 | 2,517,020 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,096 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,500 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,523 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,400 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,232,432 |
| Asia Map Quiz | 0 | - | 4.99 | 909,753 |
| Counties of England | 0 | - | 4.97 | 791,664 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,578 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,975 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,966 |
| Countries That Border Russia | 0 | - | 4.98 | 459,990 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,121 |
| Countries Bordering France | 0 | - | 4.83 | 400,771 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,976 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,512 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,723 |
| Australia Map Quiz | 0 | - | 4.94 | 343,034 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,825 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,490 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,012 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,725 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,674 |
| Countries that Border China | 0 | - | 4.96 | 262,285 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,244 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,127 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,378 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,836 |
| Flags of Oceania | 0 | - | 5.00 | 256,467 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,074 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,811 |
| Countries with Megacities | 0 | - | 4.99 | 248,431 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,071 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,045 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,927 |
| Every European Country Shape | 0 | - | 4.96 | 200,657 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,236 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,829 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,763 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,506 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,111 |
| Countries of the Middle East | 0 | - | 4.96 | 199,590 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,014 |
| Provinces of Turkey | 0 | - | 4.95 | 202,590 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,834 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,408 |
| European Countries with One Border | 0 | - | 4.97 | 181,978 |
| Counties of Ireland | 0 | - | 4.92 | 193,763 |
| Countries that Border Poland | 0 | - | 4.99 | 171,670 |
| Countries Bordering India | 0 | - | 4.98 | 163,124 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,901 |
