Wales has so many impressive castles it can be easy to take it for granted what an engineering feat some of them are. Rhuddlan Castle in Denbighshire was built under the orders of King Edward I in the 13th century, who went to extreme lengths to build the mighty structure.
After invading Wales in 1277, Edward I used castles and forts across the country to control and oppress the local Welsh population. He usually liked his castles to be near the coast for easier access to supplies from nearby ports but as Rhuddlan Castle is several miles inland it posed a challenge.
