Caernarfon Castle, a majestic UNESCO World Heritage site in North Wales, is a stunning medieval fortress built by King Edward I as a symbol of English power and a royal seat, designed with unique polygonal towers and banded masonry echoing Constantinople's walls. This colossal structure, part of Edward's "Iron Ring," served as a military stronghold, palace, and administrative center, famously the birthplace of Edward of Caernarfon (the first English Prince of Wales) and the location for Prince Charles's investiture in 1969.
