A very fascinating landscape we saw during our Ireland trip was the Burren. It's a region in the West of the island that is covered in karst, like this:
It's mainly made out of limestone and it is such a special environment, that it hosts arctic, Mediterranean and alpine plants all together.
As you can see in the picture above, the valleys are green and farmed by the owners of the grounds. The top of the hills are covered in the karst (you can see the beginning in the lower and the upper right side of the picture). The small rock walls were built from the stones in the Burren and, according to our guide, this was one of the strategies of the English to keep the Irish busy.
On top of one of the hills there was this wishing tree. If you tie something to it while wishing something it becomes true (kind of reminds me of the wishing tree in Singapore where you had to throw the coins). :)
The stone formations are really amazing!!
Very diverse landscapes. Good job, Eire!