- barcelona-metropolitan.com locations/cardona-…
- tripadvisor.com Attraction_Review-g319799-…
- paradorsofspain.com parador-de-cardona.aspx
- en.wikipedia.org Castle of Cardona
- barcelona-tourist-guide.com en/attractions/…
- tr.champagnethill.com 1184-cardona-castle-and-…
- viator.com Barcelona-attractions/Castell-de-…
- astelus.com en/Barcelona-tourist-guide/castle-of-…
- guias-viajar.com en/tourism-spain/visit-catalonia…
- barcelonalowdown.com cardona-castle-salt-mine-la-…
- patrimoni.gencat.cat en/collection/castle-cardona
- holamon.cat tr/castle-cardona
- atlasobscura.com places/castle-cardona