1. Gunung Sewu Geopark (UNESCO Global Geopark) Geological significance: Recognized by UNESCO in 2015, Gunung Sewu encompasses some 1,500–1,800 km² across...
1. Gunung Sewu Geopark (UNESCO Global Geopark) Geological significance: Recognized by UNESCO in 2015, Gunung Sewu encompasses some 1,500–1,800 km² across...