Yesterday I was at the Monastery of Santa Catalina de Siena for nuns of the Dominican Second Order in Arequipa, Peru. Fascinating place you must see if you visit the city.

Wikipedia: The Monastery of Santa Catalina de Siena is a monastery of nuns of the Dominican Second Order, located in Arequipa, Peru. 

It was built in 1579 and was enlarged in the 17th century. The over 20,000-square-meter monastery was built predominantly in the Mudéjar style, and is characterized by its vividly painted walls. There are approximately 20 nuns currently living in the northern corner of the complex; the rest of the monastery is a paid tourist attraction.

The foundress of the monastery was a rich widow, Maria de Guzman. The tradition of the time indicated that the second son or daughter of a family would enter a life of service in the Church, and the monastery accepted only women from upper class Spanish families. Each family paid a dowry at their daughter's admission to the monastery. The dowry expected of a woman who wished to enter as a choir nun--indicated by wearing a black veil—and who thereby accepted the duty of the daily recitation of the Divine Office, was 2,400 silver coins, equivalent to about $150,000 (U.S.) today. The nuns were also required to bring 25 listed items, including a statue, a painting, a lamp and clothes. The wealthiest nuns may have brought fine English china and silk curtains and rugs. Although it was possible for poorer nuns to enter the convent without paying a dowry, it can be seen from the cells that most of the nuns were very wealthy.

In 1871 Sister Josefa Cadena, O.P., a strict Dominican nun, was sent by Pope Pius IX to reform the monastery. She sent the rich dowries back to Europe, and freed all the servants and slaves, giving them the choice of either remaining as nuns or leaving. In addition to the stories of outrageous wealth, there are tales of nuns becoming pregnant, and amazingly of the skeleton of a baby being discovered encased in a wall. This, in fact, did not happen in Santa Catalina, and there are rumors of the same story in the nearby Santa Rosa monastery, as well.

At its height, the monastery housed approximately 450 people (about a third of them nuns and the rest servants) in a cloistered community. In the 1960s, it was struck twice by earthquakes, severely damaging the structures, and forcing the nuns to build new accommodation next door. It was then restored in stages by groups including Promociones Turisticas del Sur S.A. and World Monuments Fund and opened to the public. This also helped pay for the installation of electricity and running water, as required by law.