Dublin thought a 13th-century Norman castle had been demolished 150 years ago; a researcher has now shown its walls, courtyard and medieval features were hiding inside a university

<iframe
  src="https://hindustansphere.com/embed/cluster/733b5d6a0575738e720ed08514071f59696bdfef"
  width="100%" height="320"
  style="border:0;max-width:680px"
  loading="lazy"
  title="Dublin thought a 13th-century Norman castle had been demolished 150 years ago; a researcher has now shown its walls, courtyard and medieval features were hiding inside a university"></iframe>