Etal Castle
Open to visitorsan English Heritage site — check opening times and admission before you go
Substantial ruinsruined, but plenty survives above ground
Etal Castle is one of 32 castles the Albion Guide lists in Northumberland. For more of the same, Moneylaws Castle and Cornhill Castle are close by. The nearest railway station is Berwick-upon-Tweed, 15.7 km to the north-east.
More at the National Heritage List entry