Author: Catrin Stevens.

Series: Cyfres a Wyddoch chi.

A collection of interesting, unusual and wonderful facts about the castles of Wales, such as: Which castle boasts a tower that leans more than the famous Pisa tower? Which castle was the first to be built of stone by a Welsh prince? All the answers, and many more, may be found in this colourful book.

Awdur: Catrin Stevens.

Cyfres: Cyfres a Wyddoch chi.

Ffeithiau diddorol, anghyffredin ac anhygoel am gestyll Cymru. Tŵr pa gastell sy'n gwyro mwy na thŵr enwog Pisa? Pa gastell oedd yr un cyntaf i gael ei godi o garreg gan dywysog Cymreig? Mae'r atebion i gyd, a llawer mwy, rhwng cloriau'r llyfr lliwgar hwn.