The monastery Blagoveštenje (Annunciation), is located in the Gornjak gorge, on the left side of the road Petrovac - Žagubica.

It is easily recognizable by the walled up cave with more openings for windows and doors. It was built at the end of the 14th century and was one of the most prominent monasteries of that time in Braničevo. Its construction is attributed to despot Stefan Lazarević. Throughout the history, the monastery was difficult to reach, until the second half of the 19th century. The road through the gorge went along the Mlava itself, and the steep and rocky sides of the high hills rose from the riverbed. The building itself was built in a rock some twenty meters above the course of the Mlava. When the river would come, any connection to this place would be cut off.

Historical sources state that the Blagoveštenje was a very "lively" monastery. Holy books were transcribed in it and educated monks from different parts would visit it. It was destroyed as many other Serbian monasteries, at the end of the 17th century, under the invasion of the Turkish army. The whole area exudes a special ambience curiosity to which history and nature have given a special authenticity and made it one of the most beautiful landscapes in Braničevo.