Former Asland Cement Factory at Clot del Moro Monument · Castellar de n'Hug, Berguedà, Barcelona Former Portland cement factory of the Clot del Moro, in Castellar de n'Hug, and the first industrial cement factory in Catalonia. It was promoted in 1901 by the industrialist Eusebi Güell i Bacigalupi; it was built between 1901 and 1904, after 60,000 m³ of rock had to be removed for lack of transport infrastructure, and it was inaugurated on 25 July 1904. The building, by the architect Isidoro Pedraza de la Pascua advised by Rafael Guastavino, is an example of Catalan modernisme using the volta catalana technique with flat brick (maó pla), and it installed the first rotary kilns in the Spanish state. Active until 1975, it has since 1992 been a museum attached to the Museu de la Ciència i de la Tècnica de Catalunya, with galleries devoted to clinker, kilns and historic machinery. Photo: Enfo (CC BY-SA 3.0) What to see and do in Castellar de n'Hug