| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,357 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,171 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,888 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,572 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,436 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,028 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.90 | 81,780 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,690,193 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,587 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,802 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,199 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,404 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,255 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,807 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,465 |
| Megacities on a World Map | 0 | - | 4.98 | 254,678 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,181 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,291 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,435 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,001 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,853 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,051 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,325 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,399 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,478 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,523 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,162 |
| 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 | 219,917 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,617 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,516 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,089 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,439 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,681 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,713 |
| Central American Countries | 0 | - | 4.98 | 156,503 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,893 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,560 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,007 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,454 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,404 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,622 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,025 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,546 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,972 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,742 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,370 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,870 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,420 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,151 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,972 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,813 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,344 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,071 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,957 |
| Asia Capitals Quiz | 0 | - | 4.98 | 693,178 |
| Europe Capital to Country | 0 | - | 4.99 | 250,400 |
| Official Cities in the UK | 0 | - | 4.89 | 283,894 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,101 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,114 |
| Random European Capital to Country | 0 | - | 4.98 | 190,963 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,188 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,069 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,115 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,065 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,840 |
| Which City in Canada? | 0 | - | 4.83 | 57,086 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,146 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,204 |
| US States Quiz | 0 | - | 5.00 | 16,881,429 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,996 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,644 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,601 |
| US States with an Empty Map | 0 | - | 5.00 | 624,811 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,745 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,131 |
| Flags of North and South America | 0 | - | 4.99 | 373,260 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,719 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,240 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,957 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,377 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,650 |
| North America Map Quiz | 0 | - | 4.98 | 248,634 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,337 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,764 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,903 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,160 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,372 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,035 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,482 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,011 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,591 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,512 |
| States of Mexico | 0 | - | 4.96 | 176,197 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,833 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,897 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,821 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,946 |
| States of Brazil | 0 | - | 4.97 | 88,175 |
| South America Flags Map Quiz | 0 | - | 4.95 | 87,975 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,600 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,096 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,733 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,515 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,140 |
| Biggest Cities in France | 0 | - | 4.70 | 224,049 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,203 |
| Biggest Cities in California | 0 | - | 4.35 | 139,909 |
| Biggest Cities in China | 0 | - | 4.53 | 158,670 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,672 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,260 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 88,833 |
| 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 | 43,984 |
| 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 | 35,084 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,643 |
| World Capitals Quiz | 0 | - | 5.00 | 5,075,450 |
| Random Capital to Country | 0 | - | 4.99 | 2,591,978 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,982 |
| Random Country to Capital | 0 | - | 4.98 | 920,909 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,524 |
| World Capitals by Map | 0 | - | 5.00 | 286,559 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,632 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,110 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,613 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,923 |
| Coldest World Capitals | 0 | - | 4.95 | 133,574 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,410 |
| Random European Country to Capital | 0 | - | 4.93 | 165,173 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,918 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,913 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,298 |
| 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 | 89,061 |
| 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 | 94,063 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,530 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,844 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,728 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,861 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,683 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,775 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,105 |
| 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 | 94,279 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,139 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,601 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,503 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,393 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,007 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,172 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,423 |
| Countries of Africa | 0 | - | 5.00 | 2,538,173 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,450 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,209 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,102 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,043 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,751 |
| Asia Map Quiz | 0 | - | 4.99 | 917,179 |
| Counties of England | 0 | - | 4.97 | 797,221 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,593 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,833 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,650 |
| Countries That Border Russia | 0 | - | 4.98 | 461,845 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,316 |
| Countries Bordering France | 0 | - | 4.83 | 402,646 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,559 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,430 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,502 |
| Australia Map Quiz | 0 | - | 4.95 | 344,688 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,606 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,709 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,633 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,459 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,859 |
| Countries that Border China | 0 | - | 4.96 | 263,217 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,470 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,485 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,427 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,033 |
| Flags of Oceania | 0 | - | 5.00 | 259,572 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,033 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,348 |
| Countries with Megacities | 0 | - | 4.99 | 263,610 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,811 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,042 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,701 |
| Every European Country Shape | 0 | - | 4.96 | 201,796 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,903 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,769 |
