Corn Du Corn Du Corn Du is a mountain immediately to the southwest of Pen y Fan and the second highest peak in South Wales at 873 m (2,864 ft), situated in the Brecon Beacons National Park. The summit itself is marked by a well structured Bronze Age cairn with a central burial cist like that on nearby Pen y Fan. The two summits are visible from great distances owing to their height above the surrounding moorland, and are famous landmarks. The views from the peaks are also panoramic and very extensive, the Black Mountain and Fforest Fawr being especially obvious to
Pen-y-Fal Hospital to be converted to luxury housing. The last burials here were in 1948 when the hospital came under the management of the NHS. Pen-y-Fal Hospital Pen-y-Fal Hospital was a psychiatric hospital in Abergavenny, Monmouthshire, opened in 1851 and closed in 1996. It held up to 1,170 patients at its peak. The facility went under a variety of names: Pen-y-Fal was designed initially to house 250 patients. Its architect, Thomas Fulljames of Gloucester, assisted by Frederick Sandham Waller, chose the Tudor Gothic style using local old red sandstone with Bath stone dressings to animate its charming gathering of gables and chimneys.