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Photo: Zackds, CC BY-SA 3.0 es via Wikimedia Commons
Ornate Carthusian monastery, built as a palace in 1401 then converted, and re-built after a fire in 1452. It's still active.
Miraflores Charterhouse is an active Isabelline style charterhouse, or monastery of the Carthusian Order, built on a hill about three kilometres from the city of Burgos, in Castile and León, Spain. The monastery was founded in 1442 by John II of Castile, on the site of an earlier hunting lodge. It is noted for its late Gothic architecture, and especially its royal tombs.
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Story of human evolution, centred on findings in the hills of Atapuerca 16 km east where four hominid species dwelt, going back 800,000 years. Excavations continue at Atapuerca but there's not much to see there. The museum was built in 2010 on a gap site, formerly a Dominican convent.
Former church built circa 1300 and now a museum exhibiting old altars.
Mansion built in 1883 for a banker, and used as a summer residence by Franco, this is now a museum of Spanish literature.
Founded in 1187 and still an active Cistercian convent, with some three dozen nuns. "Huelga" in this context means "on fallow land": it governed 50 nearby villages, and was a royal burial place and wedding venue. Visit by one-hour guided tour.