File:Cyfarthfa Castle, Merthyr Tydfil - Geograph.org.uk - 1057882.jpg
Dominating the scene in medieval fashion with its castellated towers, it's no wonder that during the 1831 Merthyr Rising Merthyr_Rising_1831 the Chartist protesters came to Cyfarthfa Castle to protest their grievances against their main protagonist William Crawshay.
In 1909 Cyfarthfa Castle was purchased for £19,700 from the Crawshay family and was opened as a public Museum and Art Gallery in 1910 http://www.merthyr.gov.uk/Home/Leisure+and+Tourism/Libraries/History/Local+Facts/1900+to+1925.htm .
The building is currently (2008) home to the Cyfarthfa Castle Museum and Art Gallery http://www.merthyr.gov.uk/Museum/Castle/English/home/ and the Cyfarthfa High School http://www.cyfarthfahigh.merthyr.sch.uk/home.asp .(required by the license)