Rising dramatically beside the Menai Strait, Caernarfon Castle is a fortress of royal ambition and medieval might, built by Edward I in the late 13th century to consolidate English rule in North Wales. Its imposing polygonal towers and banded stonework make it one of Britain’s most iconic castles, while its status as a UNESCO World Heritage Site underscores its global significance. Visitors explore the King’s Gate, climb the Eagle Tower for sweeping views, and trace the castle’s role in Welsh history, including the 1969 investiture of Prince Charles. Nearby, the historic town walls and the scenic Llyn Padarn trail enhance the experience, blending heritage with the rugged beauty of Snowdonia.