In Ireland, I enjoyed two different castles. One was Powscourt, which was chosen as the world's top ten Mansions by Lonely Planet. It was a private castle estate. Besides the mountains, there was a big waterfall. It was a paradise for human beings. The other is Dublin Castle, where Ireland's presidents took office. There are many treasures and rare building materials, but the most worthwhile reason is that there are so few people and so many pink boy sculptures outside the castle.