Interlocking rock pillars formed from cooling lava millions of years ago in captivating locations worldwide, most notably Ireland’s Giant’s Causeway, Iceland’s Svartifoss, and Scotland’s Fingal’s Cave.

See more photos in the Nature’s Basalt Columns gallery.

Photos from vallith, julie723, matteo_dudek, TheFella, Tinnic, Christopher Scott, Moonrise80, and manzanita-pct.