Indonesia: this is the largest highly acidic lake in the world
This turquoise blue water belongs to Kawah Ijen, the largest acidic lake in the world.
Discover the Wulingyan, one of the richest ecosystems on Earth
Blue River Provincial Park: a marvel of Caledonian nature
Niue declared world's first 'Dark Sky nation'
Angels Landing trail leads to a wonderful summit
Easter Island : the mystery of its native culture
How did the Moeraki Boulders form?