The Cilwendeg Shell House Hermitage was built in 1820, and thanks to a restoration project in 2004, the mysterious and impressive structure still stands. It was built by Morgan Jones the Younger of the Cilwendeg Estate, who constructed it as a shrine for his late uncle, Morgan Jones the Elder, who lived much of his life as a recluse from society. It’s coated from head to toe in seashells and minerals from local beaches, as well as fragments of colored glass. These are fixed into walls made of lime mortar panels…