Wales is renowned for its castles - from Cardiff Castle to Caernarfon Castle, you'll find one at every turn. In fact, there are more than 600 castles in Wales, which means there are more per square mile than anywhere in the world. After hundreds of years, some are still standing tall, while others remain as romantic ruins.
Castell y Bere is exactly the latter. The remote Welsh-native castle sits on a rocky hill that overlooks the Dysynni Valley, which is at the foot of Cader Idris in Snowdonia (Eryri). The fortress was built in 1221 by Welsh ruler Llywelyn ap Iorwerth - who was also known as Llywelyn the Great, in order to protect Gwynedd's southern frontier. The castle would remain in use until 1924.
Read more: The 400-year-old fairytale bridge hidden away in a Welsh valley