Mkhitar Mkhitaryan, the president of UpThe Rocks, explained to Planetmountain: "it's important to realise that Armenia's basalt columns are natural monuments and have "passports". Climbing has never ...

Northern Ireland's only UNESCO World Heritage site, the Giant's Causeway is a natural wonder of hexagonal basalt columns formed by ancient volcanic activity. The site's visitor experience combines ...

Residing in the national monument named after it, the Devils Postpile is a cliff of columnar basalt, a type of rock ... where the density of the columns and their hexagonal shape soon become ...