| Countries of the World Quiz | 46,850,033 | 0 | - |
| All Country Flags of the World | 3,593,979 | 0 | - |
| Every Country Shape | 457,958 | 0 | - |
| US States Quiz | 16,677,867 | 0 | - |
| Perfect Squares | 101,760 | 0 | - |
| Countries of the World with an Empty Map | 3,359,993 | 0 | - |
| Countries by Languages in 90 Seconds | 710,488 | 0 | - |
| Megacities on a World Map | 250,203 | 0 | - |
| Category Elimination - Capital Cities #1 | 131,349 | 0 | - |
| All 1M Cities by Proximity | 572,551 | 0 | - |
| 100 Biggest Cities on a World Map | 413,204 | 0 | - |
| Biggest Cities in the World | 789,164 | 0 | - |
| Biggest Cities in the United States | 964,959 | 0 | - |
| Biggest Cities in Asia | 115,074 | 0 | - |
| Biggest Cities in Europe | 541,517 | 0 | - |
| World's Biggest Islands | 139,490 | 0 | - |
| Random U.S. States on a Map | 620,731 | 0 | - |
| Canada Provinces and Territories | 337,237 | 0 | - |
| Countries by Borders in 90 Seconds | 3,797,287 | 0 | - |
| Europe Capitals Quiz | 1,568,892 | 0 | - |
| Asia Capitals Quiz | 684,814 | 0 | - |
| South America Capitals Quiz | 476,768 | 0 | - |
| Biggest Countries by Population | 1,433,444 | 0 | - |
| Biggest Countries by Area | 1,038,309 | 0 | - |
| Smallest Countries by Population and Area | 377,028 | 0 | - |
| NATO Countries | 275,092 | 0 | - |
| EU Countries Quiz | 269,409 | 0 | - |
| Roman Numeral Decoding Quiz | 433,077 | 0 | - |
| World's Busiest Airports | 210,029 | 0 | - |
| Find The Mystery Country Using Color Clues - Randomized! | 2,142,993 | 0 | - |
| Countries by First Two Letters in 90 Seconds | 5,583,417 | 0 | - |
| Countries of the World With a Disappearing Map | 110,784 | 0 | - |
| Landlocked Countries | 412,863 | 0 | - |
| Most Populous Countries with Exceptions | 120,744 | 0 | - |
| Majority Muslim Countries | 367,977 | 0 | - |
| Most Populous Countries Bordering Each Other | 129,155 | 0 | - |
| Smallest Countries Bordering Each Other | 92,212 | 0 | - |
| Largest Countries Bordering Each Other | 114,566 | 0 | - |
| One Border Countries | 463,560 | 0 | - |
| 20 Random Country Flags | 603,461 | 0 | - |
| One Country By Letter By Continent on the Map | 45,589 | 0 | - |
| One Country By Letter By Continent | 121,348 | 0 | - |
| Countries of Africa with an Empty Map | 241,438 | 0 | - |
| Countries of Asia with an Empty Map | 228,590 | 0 | - |
| Countries of Europe with an Empty Map | 307,553 | 0 | - |
| Countries of North America with an Empty Map | 93,815 | 0 | - |
| Countries of South America with an Empty Map | 104,039 | 0 | - |
| Megacities on an Empty Map | 102,324 | 0 | - |
| US States with an Empty Map | 618,074 | 0 | - |
| Countries by Borders in 90 Seconds with an Empty Map | 277,208 | 0 | - |
| Countries with Megacities | 246,167 | 0 | - |
| Pin US States on a Borderless Map - Sudden Death | 1,638,617 | 0 | - |
| Pin Europe on a Borderless Map - Sudden Death | 1,552,615 | 0 | - |
| Pin Africa on a Borderless Map | 421,177 | 0 | - |
| Countries of Europe by Population | 177,680 | 0 | - |
| Top Five Countries by Language | 44,713 | 0 | - |
| U.S. Cities with the Biggest Economies | 71,933 | 0 | - |
| Countries Less Populous Than Their Neighbors | 79,665 | 0 | - |
| Countries with the Most Immigrants per Capita | 61,760 | 0 | - |
| Largest Countries as a Percent of Continent | 147,515 | 0 | - |
| European Landlocked Countries | 145,664 | 0 | - |
| Countries with the Most Forest | 146,546 | 0 | - |
| Longest International Borders | 263,362 | 0 | - |
| Island Countries | 707,228 | 0 | - |
| Commonwealth of Nations Countries | 236,065 | 0 | - |
| Biggest Import Partners By Country | 77,938 | 0 | - |
| Chinese Zodiac Quiz | 138,877 | 0 | - |
| Countries with the Most Venomous Animal Species | 86,360 | 0 | - |
| Countries with the Largest Exclusive Economic Zone | 72,510 | 0 | - |
| Richest Metro Areas in the U.S. | 43,107 | 0 | - |
| Provinces of China | 199,685 | 0 | - |
| Countries by Hottest Recorded Temperature | 111,394 | 0 | - |
| Capitals of Canadian Provinces | 88,292 | 0 | - |
| U.S. States by Land Area | 52,414 | 0 | - |
| Countries Farthest From the Sea | 74,177 | 0 | - |
| Countries with the Most Immigrants | 147,193 | 0 | - |
| Countries Closest to Africa | 156,005 | 0 | - |
| 100 Biggest Cities in the World with Exceptions | 66,548 | 0 | - |
| Countries Along the Afro-Eurasia Coast | 34,787 | 0 | - |
| Countries in the Southern Hemisphere | 122,980 | 0 | - |
| Capitals of the Most Populated Countries | 127,028 | 0 | - |
| Most Populous World Capitals | 174,392 | 0 | - |
| European Capitals by Map | 135,914 | 0 | - |
| Asian Capitals by Map | 60,957 | 0 | - |
| African Capitals by Map | 132,043 | 0 | - |
| World Capitals by Map | 282,802 | 0 | - |
| North America Capitals Quiz | 216,480 | 0 | - |
| Capitals of Oceania Quiz | 266,349 | 0 | - |
| Africa Capitals Quiz | 729,335 | 0 | - |
| World Capitals Quiz | 5,025,463 | 0 | - |
| Most Remote Capital Cities | 52,561 | 0 | - |
| Capitals with the Shortest Names | 107,476 | 0 | - |
| Countries by Capital City | 66,455 | 0 | - |
| Same Letter Country and Capital | 155,210 | 0 | - |
| Bordering Countries Whose Capitals Are Furthest Apart | 50,131 | 0 | - |
| Trace the Coast of the World Map | 54,972 | 0 | - |
| Trace the Coast of Europe with a Map | 77,860 | 0 | - |
| Countries Bordering the EU | 72,294 | 0 | - |
| Top 20 Longest One-Word Country Names | 132,327 | 0 | - |
