This is an Irish High Cross.   Each design depicts a different Bible story.  This cross is about 800 years old.

The Proleek Dolmen is prehistoric.  This Dolmen in particular has a legend that says if someone throws a stone and it lands on top they will be married within the year.

Inch Abbey was built in the 1200's.  If it weren't for people stealing the stones from its walls to build their homes, it would probably still be standing today.  The architecture and workmanship is incredible.