Muckross Abbey, located in Killarney National Park, County Kerry, Ireland, was founded in 1448 as a Franciscan friary. Despite its turbulent history of raids and persecution, the abbey remains mostly intact today, with a striking central courtyard featuring a large yew tree. It became a burial place for prominent poets in the 17th and 18th centuries. The abbey's roofless structure adds to its eerie charm, making it a must-visit historical site for those exploring the beauty of County Kerry.