Ruins outside the Iona Abbey on the Isle of Iona, with the Isle of Mull in the background.

Fingal's Cave on the uninhabited Staffa Island off the coast of Scotland. The unique hexagonal basalt columns were caused by volcanic lava more than a few years ago.

Looking inside Fingal's Cave on the island of Staffa. Moving from rock to rock along the hexagonal basalt columns isn't always as easy as it looks!