Chapel Bay Fort in Angle, Pembrokeshire, stands as a remarkable Victorian-era coastal fortress completed in 1891 to protect Milford Haven's strategic waters. This hexagonal fort was groundbreaking for its time, becoming the first fortification in the world constructed primarily of mass concrete and the last British-built fort featuring a moat. Now operating as a community-run museum, it houses Wales's largest collection of military artifacts held by a charitable trust, including artillery, firearms, and historical equipment from Britain's coastal defence era. The fort's ramped access and guided tours make its multi-storied structure and impressive artillery collection accessible to visitors, while the adjacent café provides light refreshments. Set on the scenic Pembrokeshire Coast Path, the fort combines rich military heritage with coastal beauty.