| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,359 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,173 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,893 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,572 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,439 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,032 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 81,796 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,690,220 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,597 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,828 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,208 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,415 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,258 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,814 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,468 |
| Megacities on a World Map | 0 | - | 4.98 | 254,680 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,182 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,292 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,437 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,003 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,855 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,055 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,327 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,401 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,479 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,524 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,165 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,992 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,113 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,931 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,626 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,519 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,094 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,441 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,687 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,723 |
| Central American Countries | 0 | - | 4.98 | 156,504 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,893 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,561 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,013 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,455 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,406 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,625 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,026 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,547 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,975 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,743 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,371 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,871 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,420 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,152 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,973 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,816 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,344 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,071 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,972 |
| Asia Capitals Quiz | 0 | - | 4.98 | 693,187 |
| Europe Capital to Country | 0 | - | 4.99 | 250,403 |
| Official Cities in the UK | 0 | - | 4.89 | 283,900 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,110 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,118 |
| Random European Capital to Country | 0 | - | 4.98 | 190,966 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,190 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,070 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,117 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,066 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,841 |
| Which City in Canada? | 0 | - | 4.83 | 57,087 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,147 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,204 |
| US States Quiz | 0 | - | 5.00 | 16,881,656 |
| United States Map Quiz | 0 | - | 4.98 | 4,159,033 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,654 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,620 |
| US States with an Empty Map | 0 | - | 5.00 | 624,816 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,750 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,136 |
| Flags of North and South America | 0 | - | 4.99 | 373,271 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,730 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,243 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,958 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,379 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,652 |
| North America Map Quiz | 0 | - | 4.98 | 248,635 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,339 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,766 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,907 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,167 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,374 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,039 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,483 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,016 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,593 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,514 |
| States of Mexico | 0 | - | 4.96 | 176,199 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,834 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,897 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,823 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,950 |
| States of Brazil | 0 | - | 4.97 | 88,178 |
| South America Flags Map Quiz | 0 | - | 4.95 | 87,980 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,601 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,097 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,734 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,518 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,140 |
| Biggest Cities in France | 0 | - | 4.70 | 224,050 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,204 |
| Biggest Cities in California | 0 | - | 4.35 | 139,909 |
| Biggest Cities in China | 0 | - | 4.53 | 158,671 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,673 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,260 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 88,862 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,758 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,211 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,985 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,562 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,408 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,086 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,643 |
| World Capitals Quiz | 0 | - | 5.00 | 5,075,515 |
| Random Capital to Country | 0 | - | 4.99 | 2,591,999 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,587,013 |
| Random Country to Capital | 0 | - | 4.98 | 920,916 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,527 |
| World Capitals by Map | 0 | - | 5.00 | 286,563 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,635 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,114 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,613 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,925 |
| Coldest World Capitals | 0 | - | 4.95 | 133,575 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,411 |
| Random European Country to Capital | 0 | - | 4.93 | 165,173 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,920 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,914 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,299 |
| Asia Capital to Country | 0 | - | 4.96 | 126,692 |
| Random European City to Country | 0 | - | 4.69 | 117,709 |
| European Cities by Clue | 0 | - | 4.70 | 89,062 |
| Which City in Europe? | 0 | - | 4.83 | 107,422 |
| African Capitals by Map | 0 | - | 4.99 | 133,834 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,310 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,064 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,530 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,845 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,729 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,862 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,683 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,776 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,106 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,183 |
| European Coastal Capitals | 0 | - | 4.95 | 90,626 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,448 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,202 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,281 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,140 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,601 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,504 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,397 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,007 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,211 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,436 |
| Countries of Africa | 0 | - | 5.00 | 2,538,211 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,456 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,217 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,122 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,046 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,767 |
| Asia Map Quiz | 0 | - | 4.99 | 917,185 |
| Counties of England | 0 | - | 4.97 | 797,225 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,597 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,841 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,652 |
| Countries That Border Russia | 0 | - | 4.98 | 461,851 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,316 |
| Countries Bordering France | 0 | - | 4.83 | 402,648 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,561 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,434 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,503 |
| Australia Map Quiz | 0 | - | 4.95 | 344,691 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,611 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,718 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,655 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,462 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,861 |
| Countries that Border China | 0 | - | 4.96 | 263,218 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,472 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,491 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,428 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,033 |
| Flags of Oceania | 0 | - | 5.00 | 259,579 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,035 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,350 |
| Countries with Megacities | 0 | - | 4.99 | 263,624 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,814 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,045 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,701 |
| Every European Country Shape | 0 | - | 4.96 | 201,800 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,903 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,772 |
