Welsh history was fraught with a good deal of turbulence. The Romans attempted to conquer Wales from their strongholds in Britain for over 400 years, but never succeeded. Evidence of their occupation and influence can be seen in Caerwent (Venta Silurum) where the Roman town wall’s facing stone has been re-used in local houses and farms. After the Romans, the Saxons, Picts, Vikings and Normans attempted to dominate the Welsh. Ironically, all of these struggles against invaders have left Wales with a priceless national asset: great castles in finally-peaceful settings all over the country’s landscape. Wales has over 400 castle sites and you can visit nearly 100 of them todayin various states of restoration.