- en.wikipedia.org Castle of Cardona
- tripadvisor.com.tr Attraction_Review-g319799-…
- paradores.es en/parador-de-cardona…
- viator.com Barcelona-attractions/Castell-de-…
- barcelona-tourist-guide.com tr/gezilecek-yerler/…
- patrimoni.gencat.cat en/collection/castle-cardona
- atlasobscura.com places/castle-cardona
- barcelonalowdown.com cardona-castle-salt-mine-la-…
- mapcarta.com N2050474584
- youtube.com watch
- travvelguide.com cardona-castle-attraction-in-…
- guias-viajar.com en/tourism-spain/visit-catalonia…
- astelus.com en/Barcelona-tourist-guide/castle-of-…
- arrivalguides.com en/Travelguide/BARCELONA/…