In the same eruption, the lava lakes cooled slowly and evenly, forming regular columns of basalt. Sound familiar? The hexagonal columns are what we now call now the Giant’s Causeway, a UNESCO ...

In northern Türkiye's Bartın, basalt rocks formed million years ago by the cooling and crystallization of lava from volcanic eruptions ...

And while the outside is spectacular, there’s more to discover deeper within Staffa, where Fingal’s Cave – a sea cave of spectacular hexagonal basalt columns – bores into the island.