This video shows a large wall of basalt columns rising from a grassy volcanic landscape in Iceland. The tall stone formations ...

On the banks of the Columbia River, tall columns of rock poke out from the cliffs. “So you see all of these black rocks that are on either side of us, on either side of the river? Those are basalts.

Add Yahoo as a preferred source to see more of our stories on Google. Giant's Causeway in Northern Ireland features around 40,000 exposed polygonal columns of basalt in perfect horizontal sections.

The stairway was built as part of wider improvements and gives visitors easier access for puffin-spotting.

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 ...