Berlanga de Duero Castle, which is now in ruins, dates back to the 15th century though it was built over a 10th-century Muslim fortress of which there are no remnants. It originally belonged to the Tovar family who ordered the construction of the village’s collegiate. This castle played an important role, along with the defensive wall, in defending the villages along the Douro riverbanks during the Muslim Conquest. Of the remains that are left of the castle, it is worth noting the keep which is in very good condition.References:
Built around AD 90 to entertain the legionaries stationed at the fort of Caerleon (Isca), the impressive amphitheatre was the Roman equivalent of today’s multiplex cinema. Wooden benches provided seating for up to 6,000 spectators, who would gather to watch bloodthirsty displays featuring gladiatorial combat and exotic wild animals.
Long after the Romans left, the amphitheatre took on a new life in Arthurian legend. Geoffrey of Monmouth, the somewhat imaginative 12th-century scholar, wrote in his History of the Kings of Britain that Arthur was crowned in Caerleon and that the ruined amphitheatre was actually the remains of King Arthur’s Round Table.
Today it is the most complete Roman amphitheatre in Britain.