The Certosa di San Martino is a former monastery complex, now a museum, in Naples

Naples

Naples is a city in Southern Italy, situated on the country's west coast by the Gulf of Naples. Lying between two notable volcanic regions, Mount Vesuvius and the Phlegraean Fields, it is the capital of the region of Campania and of the province of Naples...

, southern Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

. It is the most visible landmark of the city, perched atop the Vomero hill that commands the gulf. A Carthusian

Carthusian

The Carthusian Order, also called the Order of St. Bruno, is a Roman Catholic religious order of enclosed monastics. The order was founded by Saint Bruno of Cologne in 1084 and includes both monks and nuns...

 monastery, it was finished and inaugurated under the rule of Queen Joan I

Joan I of Naples

Joan I , born Joanna of Anjou, was Queen of Naples from 1343 until her death. She was also Countess of Provence and Forcalquier, Queen consort of Majorca and titular Queen of Jerusalem and Sicily 1343–82, and Princess of Achaea 1373/5–81....

 in 1368. It was dedicated to St. Martin of Tours

Martin of Tours

Martin of Tours was a Bishop of Tours whose shrine became a famous stopping-point for pilgrims on the road to Santiago de Compostela. Around his name much legendary material accrued, and he has become one of the most familiar and recognizable Christian saints...

. During the first half of the 16th century it was expanded. Later, in 1623, it was further expanded and became, under the direction of architect Cosimo Fanzago

Cosimo Fanzago

Cosimo Fanzago was an Italian architect and sculptor, generally considered the greatest such artist of the Baroque period in Naples, Italy.-Biography:...

, essentially the structure one sees today.

In the early 19th century, under French rule the monastery was closed and was abandoned by the religious order. Today, the buildings house a museum with a display of Spanish and Bourbon era artifacts, as well as displays of the presepe--Nativity scene—considered to be among the finest in the world.