The Church of San Nicolás de Bari and San Pedro Mártir has recently been restored, revealing a pictorial display that experts have called the Valencian 'Sistine Chapel'. It is amongst the first twelve Christian parish churches in the city of Valencia following the reconquest of Jaume I in 1238. Erected as a parish church around 1242, it was remodelled at the initiative of the Borja family in the Gothic style between 1419 and 1455, with the Gothic rib vault contracting in the central nave. Between 1690 and 1693, the interior was recoated with Baroque decoration and fresco paintings of scenes of the life of San Nicolás de Bari (Saint Nicholas) and San Pedro Mártir (Saint Peter Martyr), designed by Antonio Palomino and painted by Dionis Vidal.
Every Monday the Church of San Nicolás de Bari receives hundreds of visitors who make the “Walks of Saint Nicholas” or Devotion to San Judas Tadeo (Saint Jude Thaddaeus), patron of impossible causes. Its restoration has been classified as 'the most important architectural and pictorial-ornamental work ever carried out anywhere in the world due to the scale of the work and the techniques used', and you can now visit the church with or without a guided tour.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).