Caer y Tŵr

Open to visitorsa Cadw site, free to enter — check opening times before you go

Substantial ruinsruined, but plenty survives above ground

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Caer y Tŵr is a Roman tower house in Anglesey. It is the only tower house the Albion Guide lists in the county. It is looked after by Cadw. The nearest railway station is Holyhead, 3 km to the east.

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