Socotra, Yamen

Socotra was described as one of the places that looks like an alien from another planet. It is very isolated with extreme climate and dry, and as a result a third of the plants here are not available in other places, including the famous Dragon's Blood trees, unusual plants that produces umbrella-shaped red sap.
Socotra is considered the highest rate of plant diversity in Arabia and is listed as a world heritage site.