| Cromwell's Castle - Isles of Scilly 17th-century round tower positioned on a rocky promontory guarding the anchorage between Bryher and Tresco. more info... |
| Garrison Walls - Isles of Scilly Extensive defensive walls and earthworks dating back to the 16th century more info... |
| Harry's Walls - Isles of Scilly 16th-century fort built over St Mary's Pool harbour, but never finished more info... |
| King Charles's Castle - Isles of Scilly Remains of castle built for coastal defence on the north side of Tresco more info... |
| Launceston Castle - Launceston Castle set on the high motte (mound) of a stronghold built soon after the Norman Conquest more info...  |
| Pendennis Castle - Falmouth Pendennis Castle was built in the middle of the 16th century by Henry VIII as one of a pair of forts, with St Mawes Castle, to protect the Fal Estuary from the threat of invasion from France and Spain more info...  |
| Restormel Castle - Lostwithiel Surrounded by a deep moat and perched on a high mound, the huge circular keep of this castle, built at the turn of the 14th century, survives in good condition. more info...  |
| St Catherine's Castle - Fowey St Catherine's Castle was built, as one of several fortifications running along the south coast in 1536, to protect Fowey harbour from French Invasion and is now managed by English Heritage more info...  |
| St Mawes Castle - St Mawes Perfectly preserved coastal fortress built by Henry VIII. In partnership with its twin, Pendennis, it guards the entrance of the Fal Estuary. more info...  |
| St Michaels Mount - Marazion Island castle set in the middle of Mount's Bay. Site includes details on opening times, facilities and a brief history. more info...  |
| Titnagel Castle - Tintagel Clifftop ruins of castle which was allegedly the fortress used by King Arthur. more info...  |
Castles Attractions in Cornwall
