Segontium 
Description
A Roman fort was built here in AD77 to protect this far flung outpost of the Roman empire, and in particular the strategic Menai Straits. Today a small part of the ruins of the fort can be walked round
Charge
Free to look around grounds, Charge for museum (if open)
Getting There
Latitude: 53.1369789; Longitude: -4.2650319
What3Words: pushy.angle.reject
