The ‘Grianan of Aileach’ or ‘Stone House of the Sun’ was founded by Druids 1700 years before the coming of Christ. (The Grianan of Aileach is a group of historic structures atop a 244 metres hill in County Donegal, Ireland. Wikipedia)
If you want to explore Ireland without the stresses of driving, then travel Ireland by train. Trains in Ireland are usually comfortable, inexpensive and reliable, and you can watch the country appear before your eyes from the window. Here are a few things to bear in mind when travelling through Ireland by train.