I am sifting through a list of Welsh castles. It has some 100 articles/items on it :-). Some of them are ruins, others little more than mounds of earth, but there are some which still have impressive keeps, gates and walls standing, or even most of the castle. These castles I mentioned are 11th, 12th, and 13th-century for the most part (a few are 13th-14th c. or where finished in the 14th, 15th, or 16th c.), but some of them are 19th-century Gothic Revival castles.
Ready? Here they come!