What Do We Know About the Giant's Causeway?

The What Do We Know About? series explores the mysterious, the unknown, and the unexplained. Was the Giant’s Causeway really built by giants? Learn all about the mystery surrounding one of the United Kingdom’s greatest natural wonders.

The Giant's Causeway is a spectacular geological formation in Northern Ireland that is a popular tourist destination and UNESCO World Heritage Site. According to Irish folklore, in the third century, a giant named Finn McCool was challenged to a duel by anothe...