The Basilica of Our Lady of the Pillar in Zaragoza is a huge Baroque church beside the Ebro River. It is built where, according to tradition, the Virgin Mary appeared to Saint James on a pillar in 40 AD. Its many domes are covered in coloured tiles, and some ceilings were painted by Goya. A tower lift gives views over the city.

Burgos Cathedral is one of the finest Gothic cathedrals in Spain, begun in 1221. Its facade has two openwork spires, and inside are richly carved chapels, a golden staircase and the tomb of El Cid, the medieval hero. It is a stop on the Way of Saint James pilgrimage. It is a UNESCO World Heritage Site.

León Cathedral is a Gothic cathedral begun in the 13th century, inspired by French cathedrals. It is famous for its stained glass windows, which cover about 1,800 square metres, among the most complete medieval sets in Europe. The light inside makes it one of the brightest Gothic churches. It is a stop on the Way of Saint James.

Covadonga is a sacred site in the mountains of Asturias, where tradition says the Christian reconquest of Spain began in 722. A chapel is built into a cave in the cliff above a waterfall, holding the statue of the Virgin of Covadonga. A pink stone basilica stands nearby. A road climbs to the lakes of Covadonga in the Picos de Europa.

Santiago de Compostela Cathedral is said to hold the remains of Saint James the Apostle and is the end of the Way of Saint James pilgrimage. The present cathedral was begun in 1075, with a grand Baroque facade added in the 18th century facing the Praza do Obradoiro. A giant incense burner, the Botafumeiro, swings across the transept at special services.

Seville Cathedral is the largest Gothic cathedral in the world, built from 1401 on the site of a great mosque. Its bell tower, the Giralda, was the mosque's minaret, with a Renaissance belfry added on top. Inside is a huge gilded altarpiece and the tomb of Christopher Columbus. It is part of a UNESCO World Heritage Site.