13 Haunting Places in Ireland to Visit in This Lifetime

The Janus figure on Boa Island on Lower Lough Erne is a striking Celtic idol, roughly 2,000 years old. The effigies on either side of the stone have pear-shaped heads and crossed arms; one is bearded and the other is said to be female, though it's rather hard to tell! The hollow at the top of the stone may have been used to hold sacrificial blood, but these days fortunately all you'll find are a few coins in the rainwater.