Royal Citadel

Commanding Plymouth Hoe since the 1670s, the Royal Citadel is a formidable coastal fortress built under Charles II to guard Plymouth Sound. Its star-shaped bastions, looming limestone walls, and surviving artillery positions reveal England’s post-Civil War defenses. Guided tours (seasonal) let visitors explore the parade ground, chapel, and ramparts while learning about garrison life and maritime strategy. Though parts remain an active military site, the Citadel offers sweeping views over the harbor and a tangible link to Britain’s coastal fortification history—appealing to military-history enthusiasts, architecture fans, and travelers seeking context for Plymouth’s seafaring past.