These basalt columns formed from molten lava. As the rock cooled, at slightly different rates, it hardened into these asymmetrical columns. Legend has it that Fingal, a Gaelic giant, quarrelled with an Ulster giant from Ireland. In order to fight Fingal, the Ulster giant built a causeway between Ireland and Scotland. After it was destroyed, only the two ends remained - one at Staffa (shown here), the other at the Giant's Causeway in Antrim.
I have my own theories. Mostly involving nephilim battles. But then, I also think Paul Bunyan was the last of the nephilim. So who am I to say?
But it's beautiful. Scotland as a whole was amazing, and I would happily move out to the islands for a few months.