The Monastery of Saint Anthony is a Coptic Orthodox monastery standing in an oasis in the Eastern Desert of Egypt, in the southern part of the Suez Governorate. Hidden deep in the Red Sea Mountains, it is located 334 km (208 mi) southeast of Cairo.

It is the oldest Christian monastery in the world. The Monastery of Saint Anthony was built between 298–300 during the reign of Constantius Chlorus.

St Anthony himself was the founder of monasticism. The Monastery of Saint Anthony was established by the followers of Saint Anthony, who is the first Christian monk.

The Monastery of St. Anthony is one of the most prominent monasteries in Egypt and has strongly influenced the formation of several Coptic institutions, and has promoted monasticism in general. Several patriarchs have come from the monastery, and several hundred pilgrims visit it each day.

The modern monastery is a self-contained village with gardens, a mill, a bakery and five churches. The walls are adorned with paintings of knights in bright colors and hermits in more subdued colors. 

According to en.wikipedia