in this development was that Burgos was the capital of the unified kingdom of Castilla-Leon between the 10th and 15th centuries, its privileged location on the Pilgrim's Road to Santiago de Compostela and the monopoly it held over the trade of merino wool, also contributed. All that splendour left a profound mark on present-day Burgos.On the foothill of the fortified Castle Hill, which has the best views of the city, the medieval quarter unfolds. Some of the remarkable buildings of this place include the Mudejar Arch of San Esteban and the Gothic church by the same name, which houses the Reredos Museum. Another important temple is the one devoted to San Nicolás, where you can see a magnificent polychromatic alabaster reredos.World HeritageBut beyond all doubt, the architectural masterpieceof Burgos is the cathedral, declared World Heritage Site by UNESCO. Erected on top a Romanesque temple, the cathedral was built following a Norman French Gothic model. The filigree work in the spires of the towers and in the exterior of the High Constable Chapel, are some of the masterpieces found in this cathedral. Such beauty and incredible genius lead to a long list of exceptional works of art in its interior. These include the starry dome that covers the tombs of El Cid and Doña Jimena, the choir, the sarcophagi and the Golden Staircase, built by Spanish architect and sculptor Diego de Siloé, a prominent figure during the Spanish Renaissance.Beautiful examples of civil architecture include Casa de Miranda, which houses the Burgos Museum, with an important collection