Saint Catherine's Monastery (Greek

Greek language

Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

: Moni tes Hagias Aikaterines) lies on the Sinai Peninsula

Sinai Peninsula

The Sinai Peninsula or Sinai is a triangular peninsula in Egypt about in area. It is situated between the Mediterranean Sea to the north, and the Red Sea to the south, and is the only part of Egyptian territory located in Asia as opposed to Africa, effectively serving as a land bridge between two...

, at the mouth of a gorge at the foot of Mount Sinai

Mount Sinai

Mount Sinai , also known as Mount Horeb, Mount Musa, Gabal Musa , Jabal Musa meaning "Moses' Mountain", is a mountain near Saint Catherine in the Sinai Peninsula of Egypt. A mountain called Mount Sinai is mentioned many times in the Book of Exodus in the Torah and the Bible as well as the Quran...

 in the city of Saint Catherine

Saint Catherine, Egypt

Saint Catherine is the capital city of Saint Katherine Markaz and a natural protectorate in the South Sinai Governorate in Sinai in Egypt. It is located at the outskirts of El-Tur Mountains Province at an elevation of 1586 m , 120 km away from Nuweiba, at the foot of Mount Sinai and the...

 in Egypt

Egypt

Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

's South Sinai Governorate. The monastery is Orthodox

Eastern Orthodox Church

The Orthodox Church, officially called the Orthodox Catholic Church and commonly referred to as the Eastern Orthodox Church, is the second largest Christian denomination in the world, with an estimated 300 million adherents mainly in the countries of Belarus, Bulgaria, Cyprus, Georgia, Greece,...

 and is a UNESCO

UNESCO

The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations...

 World Heritage Site

World Heritage Site

A UNESCO World Heritage Site is a place that is listed by the UNESCO as of special cultural or physical significance...

. According to the UNESCO report (60100 ha / Ref: 954), this monastery is one of the oldest working Christian monasteries in the world together with the Monastery of Saint Anthony

Monastery of Saint Anthony

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 southeast of Cairo. It is one of the oldest monasteries in the world, together with...

, situated across the Red Sea

Red Sea

The Red Sea is a seawater inlet of the Indian Ocean, lying between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb strait and the Gulf of Aden. In the north, there is the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez...

 in the desert

Desert

A desert is a landscape or region that receives an extremely low amount of precipitation, less than enough to support growth of most plants. Most deserts have an average annual precipitation of less than...

 south of Cairo

Cairo

Cairo , is the capital of Egypt and the largest city in the Arab world and Africa, and the 16th largest metropolitan area in the world. Nicknamed "The City of a Thousand Minarets" for its preponderance of Islamic architecture, Cairo has long been a centre of the region's political and cultural life...

, which also lays claim to that title.
The oldest record of monastic life at Sinai comes from the travel journal written in Latin by a woman named Egeria about 381-384.