The Sinaia Monastery was founded by Prince Mihail Cantacuzino in 1695 and named after the great Saint Catherine's Monastery on Mount Sinai in Egypt. The monastery consists of two courtyards surrounded by low buildings. In the centre of each courtyard there is a small church built in the Byzantine style.
One of them—"Biserica Veche" (The Old Church)—dates from 1695, while the more recent "Biserica Mare" (The Great Church) was built in 1846.
As of 2005, the Monastery is inhabited by 13 Christian Orthodox monks led by hegumen Macarie Boguș. It is part of the Bucharest archdiocese.