“Fingal’s Cave” on the uninhabited Island of Staffa in the Hebrides of Scotland is a mysterious and eerie cave that is hard to believe that it was created by nature. The most distinctive feature is this hexagonal pillar group, and you walk along the wall made of a series of neatly hexagonal pillars to the entrance of the cave. Fingal’s Cave, a mysterious natural creation, is a must-see for the adventurous.