The Abbey on the top: San Miguel de Escalada

The Monastery of San Miguel de Escalada, opened in around 951 during the reign of King Alfonso III the Magno, is a remarkable testament to the Moorish influence that once swept across the Iberian Peninsula. Consecrated by Bishop Genadio of Astorga, it was the starting point for the Kingdom of León. In 1050, Abbot Sabarico rebuilt the monastery, and King Alfonso VII of León gave it to the Order of Saint-Ruf in 1155. Today, it stands as a National Monument, its three aisles and horseshoe arches a testament to the Moorish and Roman influences that built it. Its exterior, a rectangular block, gives no hint of the steeples and Corinthian columns inside, nor the paintings from the 15th century that decorate the wood panels.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons