| 55,513 | Countries with Tropical Rainforest and Glaciers | 2021-10-24 | |
| 3,067 | Countries by Coastline Shape | 2022-07-22 | 48 |
| 2,780 | National Forests of the United States on a Map | 2021-09-29 | 31 |
| 2,013 | Countries with Desert | 2023-05-07 | 20 |
| 1,481 | Countries with Tropical and Polar Climates | 2023-05-27 | 6 |
| 1,097 | Countries with Tropical Rainforest | 2023-03-22 | 13 |
| 888 | Cities of Riverside County on a Map | 2021-05-20 | 1 |
| 756 | Cities of San Bernardino County on a map | 2021-05-18 | 1 |
| 697 | Countries with Tidewater Glaciers | 2019-06-23 | 7 |
| 460 | Countries with Temperate Rainforest | 2021-06-30 | 3 |
| 460 | Cities of Ventura County on a map | 2021-05-18 | 0 |
| 454 | Inhabited Islands of French Polynesia | 2020-07-30 | 1 |
| 405 | Countries with a Cold Desert Climate | 2020-08-30 | 2 |
| 337 | Countries with a Warm Summer Mediterranean Climate | 2020-11-17 | 2 |
| 282 | Cities of Santa Barbara County on a Map | 2021-05-18 | 1 |
| 276 | Countries with a Mediterranean Climate | 2021-01-08 | 0 |
| 256 | All 63 National Parks by Picture (Really Hard) | 2022-10-15 | 3 |
| 233 | Countries with a Hot Desert Climate | 2020-08-30 | 1 |
| 223 | 50 Largest Islands of the United Kingdom | 2019-12-20 | 2 |
| 197 | Countries with a Humid Subtropical Climate | 2020-11-20 | 0 |
| 183 | Countries with Bears | 2019-08-21 | 0 |
| 174 | Countries with a Cold Semi-Arid Climate | 2020-08-30 | 0 |
| 160 | Countries with a Cold Summer Mediterranean Climate | 2020-08-30 | 1 |
| 156 | Wilderness Areas of California on a Map | 2022-02-20 | 2 |
| 156 | All 50 States by Picture - Really Easy | 2020-10-08 | 0 |
| 155 | Countries with a Hot Summer Mediterranean Climate | 2020-11-17 | 2 |
| 153 | Countries with a Dry Warm Summer Humid Continental Climate | 2020-12-31 | 0 |
| 147 | Countries with a Tropical Savannah Climate | 2020-08-30 | 0 |
| 146 | Countries with a Cold Subtropical Highland Climate | 2020-11-19 | 1 |
| 146 | Countries with a Hot Semi-Arid Climate | 2022-11-04 | 0 |
| 140 | Countries that are Artificially Connected | 2021-07-04 | 0 |
| 137 | Countries with a Subpolar Oceanic Climate | 2020-12-28 | 0 |
| 132 | Countries with the most wilderness | 2020-01-05 | 1 |
| 132 | Islands in the Faroe Islands | 2019-07-18 | 0 |
| 131 | Countries with a Tropical Monsoon Climate | 2020-08-30 | 0 |
| 130 | Countries with a Subtropical Highland Climate | 2020-11-19 | 0 |
| 128 | Island Countries You Can Drive To | 2020-12-26 | 0 |
| 126 | Countries with all Main Climate Groups | 2020-07-30 | 1 |
| 117 | Edinburgh Secondary Schools | 2019-06-15 | 0 |
| 117 | National Forests of California on a Map | 2021-05-25 | 0 |
| 112 | Countries with a Temperate Oceanic Climate | 2020-11-24 | 0 |
| 110 | Countries Visited by Joe Biden as President | 2022-07-22 | 0 |
| 107 | Largest Islands with Glaciers | 2019-08-09 | 1 |
| 103 | Desert Countries | 2019-11-25 | 1 |
| 103 | Countries and Territories that touch the Pacific Ocean | 2019-10-25 | 0 |
| 101 | Countries with a Monsoon-InfluencedHumid Subtropical Climate | 2020-11-20 | 0 |
| 99 | Countries with Multiple Coastlines | 2019-08-07 | 1 |
| 97 | National Parks of New Zealand on a Map | 2021-11-13 | 0 |
| 97 | Most Mountainous States | 2021-03-15 | 2 |
| 94 | National Parks with Glaciers | 2020-01-04 | 1 |
| 92 | States with French Names | 2020-06-16 | 1 |
| 92 | Countries Once Part of the United States | 2019-07-27 | 0 |
| 86 | 20 Largest Islands of Canada | 2021-01-22 | 0 |
| 86 | Countries with Puffins | 2019-08-19 | 0 |
| 84 | National Parks with Wolves | 2019-06-30 | 0 |
| 80 | Landlocked Blue States | 2020-11-21 | 0 |
| 80 | Coastal Red States | 2020-11-21 | 0 |
| 80 | Archipelagos of French Polynesia | 2019-07-11 | 0 |
| 79 | States with Volcanoes | 2020-05-19 | 1 |
| 78 | Countries with Capitals not on Largest Landmass | 2021-06-28 | 0 |
| 77 | California Valleys Map Quiz | 2021-08-23 | 2 |
| 76 | World's Biggest Watersheds Quiz | 2020-10-04 | 0 |
| 75 | States with a Tundra Climate | 2021-09-14 | 0 |
| 74 | Non-Capitals with US Embassies | 2020-08-10 | 0 |
| 71 | Countries with Atolls | 2019-06-28 | 2 |
| 71 | States without Wildernesses | 2022-01-05 | 1 |
| 69 | Largest Islands without Glaciers | 2019-12-06 | 1 |
| 69 | Countries with Temperate Forests | 2019-12-06 | 0 |
| 66 | Island Subdivisions | 2021-03-10 | 0 |
| 66 | Five Largest Islands by Continent | 2021-07-05 | 1 |
| 65 | Countries more Populous than California | 2020-07-14 | 1 |
| 64 | Most Beautiful States | 2020-08-18 | 0 |
| 63 | All Wilderness Areas of the United States on a Map | 2022-01-04 | 3 |
| 63 | Countries made of Coral | 2019-08-19 | 0 |
| 62 | Coastal Desert Countries | 2019-10-21 | 1 |
| 60 | African Countries with Alpine Tundra | 2021-09-23 | 2 |
| 57 | States with Rainforest | 2022-09-28 | 0 |
| 57 | States with the Largest Islands | 2021-09-14 | 0 |
| 54 | US Cities on State Borders | 2020-05-22 | 1 |
| 53 | Straight Shot to New York City | 2021-05-02 | 1 |
| 51 | Subantarctic Islands on a Map | 2021-07-01 | 1 |
| 51 | Island Countries with Inland Capitals | 2021-04-19 | 0 |
| 50 | National Parks with Bison | 2021-09-16 | 0 |
| 49 | Countries with Mangroves | 2019-08-02 | 0 |
| 49 | States and Territories in WWII | 2020-06-04 | 1 |
| 48 | California Wildlife by Picture | 2020-09-17 | 0 |
| 48 | Prairie States | 2021-08-26 | 0 |
| 47 | Countries with Manatees | 2019-10-19 | 0 |
| 47 | 20 Largest Islands of the United Kingdom | 2021-01-22 | 0 |
| 46 | Countries in the Watershed of the Arctic Ocean | 2021-08-08 | 0 |
| 46 | Politically Insulated States | 2021-01-12 | 0 |
| 43 | English-Spanish Borders | 2019-08-31 | 0 |
| 42 | States under Ice 20,000 Years Ago | 2021-05-10 | 0 |
| 41 | California Geology | 2019-08-20 | 0 |
| 41 | States most on Islands | 2020-07-30 | 0 |
| 40 | US Cities by Bodies of Water | 2021-02-04 | 0 |
| 40 | States with Geysers | 2020-10-31 | 0 |
| 40 | National Park Sites of California on a Map | 2021-11-30 | 1 |
| 40 | Succulents by Picture | 2019-08-20 | 0 |
| 39 | Canadian Provinces Without Tundra | 2021-08-23 | 0 |
| 38 | Countries above the Tree Line | 2019-12-06 | 1 |
| 37 | Californian Valleys | 2021-08-23 | 1 |
| 36 | River Mouths by Satellite Image | 2021-12-17 | 0 |
| 35 | Most Common County Names | 2019-10-21 | 1 |
| 35 | Countries by River Delta | 2021-06-29 | 0 |
| 32 | Largest Cities near National Parks | 2021-01-18 | 0 |
| 31 | Countries less than 1000 feet high | 2019-07-05 | 0 |
| 31 | States with Exclaves | 2020-07-29 | 0 |
| 31 | States with Multiple Time Zones | 2021-03-04 | 1 |
| 30 | Straight Shot to Boston | 2021-05-04 | 0 |
| 30 | Straight Shot to Los Angeles | 2021-05-03 | 0 |
| 30 | 20 Largest Islands of the United States | 2021-01-25 | 0 |
| 30 | 2-Country Trivia | 2021-04-28 | 0 |
| 29 | Name a Valid National Park #2 | 2021-12-30 | 0 |
| 29 | Cities by Mountain | 2019-08-12 | 0 |
| 29 | Cities in Santa Barbara County | 2021-01-14 | 0 |
| 29 | Highest Mountain in Each State | 2021-07-31 | 0 |
| 28 | Closest State Capitals to Borders | 2020-07-28 | 0 |
| 28 | 20 Largest Islands of Indonesia | 2021-01-24 | 0 |
| 27 | Californian Bodies of Water | 2019-11-25 | 0 |
| 26 | National Parks without Wildernesses | 2020-07-12 | 0 |
| 26 | States with National Grasslands | 2021-04-23 | 0 |
| 26 | National Parks with Sand Dunes | 2019-07-23 | 0 |
| 24 | National Parks located Entirely on Islands | 2019-07-01 | 0 |
| 24 | National Parks Larger than Rhode Island | 2021-12-05 | 0 |
| 23 | Five Flags over California | 2020-08-12 | 0 |
| 23 | Island in Lake on Island in Lake on Island Countries | 2020-12-22 | 0 |
| 23 | 20 Largest Islands of France | 2021-01-22 | 0 |
| 22 | Grand Canyons | 2020-08-15 | 0 |
| 21 | Countries of the Mediterranean Basin | 2021-08-08 | 0 |
| 21 | National Parks with Volcanoes | 2023-03-01 | 0 |
| 21 | States with Wayne County | 2020-11-17 | 0 |
| 19 | States on a Soda Can | 2020-12-19 | 0 |
| 19 | States with Subarctic Forests | 2021-08-24 | 0 |
| 19 | States of the Colorado River Watershed | 2020-11-03 | 0 |
| 16 | Countries Spelled by Letters in United States of America | 2021-06-28 | 1 |
| 16 | Desert National Parks | 2021-10-27 | 0 |
| 16 | 20 Largest Islands of the Lower 48 | 2021-01-24 | 0 |
| 15 | US States by Picture (Hard) | 2022-02-02 | 0 |
| 15 | States, Provinces, and Territories on the Continental Divide | 2019-08-23 | 0 |
| 14 | States of the Sonoran Desert | 2021-02-09 | 0 |
| 14 | States with Concave Right Angles | 2020-07-08 | 0 |
| 14 | National Park Areas in California | 2019-09-01 | 0 |
| 14 | Exclaved National Parks | 2019-08-02 | 0 |
| 13 | National Parks with Tundra | 2021-09-13 | 2 |
| 13 | Counties with Joshua Trees | 2019-11-10 | 0 |
| 13 | National Parks with Thermal Features | 2019-08-10 | 0 |
| 11 | Canadian National Parks on Islands | 2019-09-08 | 0 |
| 11 | Countries 15° East of the Prime Meridian | 2019-06-13 | 1 |
| 11 | California National Parks Multiple Choice | 2020-07-30 | 0 |
| 9 | Counties along the San Andreas Fault | 2019-08-09 | 0 |
| 9 | California Wildernesses | 2020-08-12 | 0 |
| 9 | State High Points in National Parks | 2021-10-17 | 0 |
| 8 | Best Counties in America | 2020-12-16 | 0 |
| 8 | California Disasters | 2020-09-11 | 0 |
| 8 | California Lighthouses | 2020-09-10 | 0 |
| 8 | Dear Old Dartmouth Lyrics | 2023-11-08 | 0 |
| 7 | Islands to National Parks | 2023-02-25 | 0 |
| 7 | Marine Islands of California | 2019-06-11 | 0 |
| 7 | National Parks with State/Territory High Points | 2021-08-22 | 0 |
| 6 | Los Padres National Forest Trivia | 2019-08-19 | 0 |
| 6 | National Preserves of the United States | 2021-10-06 | 0 |
| 5 | Channel Islands National Park Trivia | 2019-08-19 | 0 |
| 3 | Edges of the Pacific Plate | 2019-09-15 | 0 |
| 3 | Peaks of the Santa Ynez Mountains | 2020-06-24 | 0 |
| 0 | Carrizo Plain National Monument Trivia | 2019-08-19 | 0 |
