| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,601 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,127 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,075 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,045 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,924 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,910 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,945 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,681,394 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,462 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,069 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,879 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,546 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,957 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,813 |
| Megacities on a World Map | 0 | - | 4.98 | 251,991 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,947 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,319 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,557 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,859 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,009 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,979 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,726 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,241 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,673 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,161 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,755 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,897 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,681 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,673 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,873 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,971 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,798 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,482 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,090 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,820 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,347 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,386 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,291 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,226 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,546 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,237 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,967 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,374 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,977 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,901 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,277 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,257 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,350 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,678 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,226 |
| Europe Capital to Country | 0 | - | 4.99 | 248,613 |
| Official Cities in the UK | 0 | - | 4.89 | 281,579 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,854 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,546 |
| Random European Capital to Country | 0 | - | 4.98 | 189,643 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,799 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,760 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,320 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,636 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,522 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,324 |
| Which City in Canada? | 0 | - | 4.82 | 56,820 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,963 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,108 |
| US States Quiz | 0 | - | 5.00 | 16,757,471 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,609 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,546 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,494 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,802 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,312 |
| US States with an Empty Map | 0 | - | 5.00 | 620,720 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,487 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,893 |
| Flags of North and South America | 0 | - | 4.99 | 369,387 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,320 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,275 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,542 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,617 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,900 |
| North America Map Quiz | 0 | - | 4.98 | 246,023 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,425 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,255 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,452 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,877 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,313 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,346 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,767 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,331 |
| Central American Countries | 0 | - | 4.98 | 155,410 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,706 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,282 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,040 |
| Biggest Cities in France | 0 | - | 4.69 | 222,909 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,300 |
| Biggest Cities in California | 0 | - | 4.35 | 139,440 |
| Biggest Cities in China | 0 | - | 4.52 | 157,541 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,360 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,010 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,498 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,004 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,859 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,788 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,344 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,241 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,958 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,070 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,984 |
| World Capitals Quiz | 0 | - | 5.00 | 5,045,138 |
| Random Capital to Country | 0 | - | 4.99 | 2,582,491 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,770 |
| Random Country to Capital | 0 | - | 4.98 | 914,031 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,365 |
| World Capitals by Map | 0 | - | 5.00 | 284,436 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,655 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,704 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,059 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,982 |
| Coldest World Capitals | 0 | - | 4.95 | 133,170 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,173 |
| Random European Country to Capital | 0 | - | 4.92 | 147,745 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,941 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,348 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,477 |
| Asia Capital to Country | 0 | - | 4.96 | 126,062 |
| Random European City to Country | 0 | - | 4.69 | 116,848 |
| European Cities by Clue | 0 | - | 4.70 | 88,897 |
| Which City in Europe? | 0 | - | 4.83 | 106,937 |
| African Capitals by Map | 0 | - | 4.99 | 132,638 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,935 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,626 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,317 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,530 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,945 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,418 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,243 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,695 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,503 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,845 |
| European Coastal Capitals | 0 | - | 4.95 | 90,023 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,882 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,864 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,815 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,288 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,304 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,897 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,737 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,874 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,746 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,001 |
| Countries of Africa | 0 | - | 5.00 | 2,517,179 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,136 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,530 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,582 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,445 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,232,531 |
| Asia Map Quiz | 0 | - | 4.99 | 909,798 |
| Counties of England | 0 | - | 4.97 | 791,709 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,618 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,012 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,977 |
| Countries That Border Russia | 0 | - | 4.98 | 460,004 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,142 |
| Countries Bordering France | 0 | - | 4.83 | 400,787 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,996 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,528 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,746 |
| Australia Map Quiz | 0 | - | 4.94 | 343,042 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,859 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,493 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,018 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,731 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,683 |
| Countries that Border China | 0 | - | 4.96 | 262,299 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,251 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,157 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,398 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,843 |
| Flags of Oceania | 0 | - | 5.00 | 256,486 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,080 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,818 |
| Countries with Megacities | 0 | - | 4.99 | 248,451 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,088 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,050 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,935 |
| Every European Country Shape | 0 | - | 4.96 | 200,667 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,240 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,832 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,767 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,517 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,115 |
| Countries of the Middle East | 0 | - | 4.96 | 199,604 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,020 |
| Provinces of Turkey | 0 | - | 4.95 | 202,604 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,848 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,416 |
| European Countries with One Border | 0 | - | 4.97 | 181,981 |
| Counties of Ireland | 0 | - | 4.92 | 193,774 |
| Countries that Border Poland | 0 | - | 4.99 | 171,682 |
| Countries Bordering India | 0 | - | 4.98 | 163,129 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,915 |
