Deir al-Qamar, meaning "Monastery of the Moon" is a village located south-east of Beirut and five kilometres outside of Beiteddine palace in the Chouf District of the Mount Lebanon. Deir El Qamar was the first village in Lebanon to have a municipality in 1864, and it is the birthplace of many well known personalities, such as artists, writers, and politicians. People from all religious backgrounds lived there and the town had a mosque, synagogue and Christian churches. In the year 1860, Deir al-Qamar was destroyed during the civil war between Druze and Christians during which the town was set ablaze. Napoleon III sent a French contingent to rebuild it, recalling France ancient role as protector of the Christians in the Ottoman Empire as established by a treaty in 1523. In 1864, Deir el-Qamar elected the first municipality in the Arab provinces of the Ottoman Empire. The village retains a remarkable picturesque appearance with typical stone houses with red tile roofs.

Fakhreddine Mosque with its octagonal minaret is a mosque in Deir el Qamar, Lebanon. Built in 1493 and restored in the sixteenth century by Fakhreddine 1st, it is the oldest mosque in Mount Lebanon.

The Church of Saidet et Tallé and translated as Our Lady of the Hill is one of the most important historical and religious sites in Deir el Qamar and dates to the 15th century. Monk Nicolas Smisaati built a church on the site over the ruins of an old Phoenician temple dedicated to the goddess Astarte that was later destroyed by an earthquake in 859. According to the Maronite Heritage web site, "the legend says that there was a Druze Emir in Baakline looking at the hill of Dar El Kamar. He saw a light coming out of the hill so he gathered his soldiers and ordered them to go in the morning and dig in the land. He said to them: 'If you find an Islamic symbol, build a mosque. If you find a Christian symbol, build a church." In the morning, the soldiers went and found a rock with a cross on it and under the cross there was the moon and venus. That was the sign that in the distant past there was a temple dedicated to the moon and venus and later it became a church.