Kidwelly Castle is a well-preserved medieval fortress in Carmarthenshire, Wales, built around 1106 by the Normans to control the River Gwendraeth. It features classic concentric walls, strong gatehouses, and defensive towers. The castle saw many battles, including attacks by Welsh forces and Owain Glyndŵr in 1403. Today, it’s managed by Cadw and open to visitors, offering a glimpse into Wales’s turbulent medieval past.