| 100% | ECOTONE | 7 | Transitional region between biomes |
| 59% | ECOTONE | 7 | Transitional zone between two biomes |
| 57% | MARSH | 5 | Transitional wetland between water and land biomes |
| 48% | ECOTONE | 7 | Transition zone between biomes |
| 47% | VALLEY | 6 | Region between hills |
| 47% | VALLEYS | 7 | Regions between mountains |
| 44% | TAIGA | 5 | Region between the tundra and steppes |
| 43% | IBERIA | 6 | Region between Cape Roca and Cape Creus |
| 43% | ALSACE | 6 | Region between the Vosges and the Rhine |
| 41% | KASHMIR | 7 | Disputed region between Pakistan and India |
| 41% | KASHMIR | 7 | Disputed region between India and Pakistan |
| 40% | CAUCASUS | 8 | Mountainous region between Black and Caspian seas |
| 40% | FRISIA | 6 | Coastal region between the Netherlands and Germany |
| 40% | ECOTONE | 7 | Transitional zone between plant communities |
| 39% | ECOTONES | 8 | Transitional zones between different plant communities |
| 38% | DEAN | 4 | Forest of —, region between the Rivers Severn and Wye |
| 37% | RIVIERA | 7 | Mediterranean coastal region between Cannes, France, and La Spezia, Italy |
| 36% | FYLDE | 5 | Region in Lancashire between the Wyre and Ribble estuaries |
| 32% | TRADE | 5 | Triangular ___, commerce that takes place between three ports or regions |
| 32% | KASHMIR | 7 | Region of SW central Asia disputed between India, Pakistan and China since 1947 |
| 31% | ETRURIA | 7 | Ancient region of central Italy between the Rivers Tiber and Arno |
| 31% | WEALD | 5 | The —, region of southeast England between the North and South Downs |
| 31% | COSTA | 5 | Coastal region of NE Spain between Barcelona and the French border |
| 31% | MESOPOTAMIA | 11 | Ancient region of SW Asia between the Rivers Euphrates and Tigris |
| 29% | WEALD | 5 | The —, region of SE England between the North Downs and the South Downs |
| 29% | WEALD | 5 | The —, region of southeast England between the North Downs and the South Downs |
| 29% | CAMARGUE | 8 | Region of southern France between the Mediterranean and the channels of the Grand and Petit Rhone |
| 25% | AREA | 4 | Region |
| 25% | CLIME | 5 | Region |
| 25% | ZONE | 4 | Region |