Why are "Inca Doorways" built into 1000+ year old monasteries.. IN IRELAND?

This video is the latest and greatest. I share some holiday snaps and info. During my 2014 holiday, which was aimed at investigating Irish round towers (i visited 13) as well as Irish pyramids (Cairns),  I realized that, in fact, there are INCA doors in Ireland. Not only did the #Inca_doors, which date from the #dark_ages, remind me of the Peru, but in addition, so did pyramids, or cairns, built thousands of years earlier!