Giant's Causeway in Northern Ireland features around 40,000 exposed polygonal columns of basalt in perfect horizontal sections. Chris Hill/Photodisc via Getty Images The reason patterns often appear ...

THE island of Staffa being nearly a mile in length, we have already had a distant external view of the huge grassy mound which constitutes its surface, reared on a steep, craggy base, here and there ...

This collection of basalt columns was recorded in a canyon north of Molokai, at a depth of just over a mile, according to Nautilus Live Ocean Exploration Trust. YouTube video screengrab Newly recorded ...

Along the rugged coast of County Antrim, the Giant’s Causeway rises like a puzzle from the sea—40,000 interlocking basalt columns shaped by volcanic fury and wrapped in legend. Whether you come for ...

Most aficionados of geology have heard of the Giant's Causeway, a distinctive area of perfectly formed hexagonal basaltic columns that form a "stone bridge" that juts eastward into the sea from ...

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