It is regularly selected for sacraments by Thessalonians due to its location and history. It is the only monastery in Thessaloniki which continues to operate since the 14th century, founded by Vlati or Vlateoi brothers. It is dedicated to the Transfiguration of Christ. It has an impressive main church. Architecturally, it is a relatively rare variation of a composite cruciform church where the dome is not supported on columns, but on the sanctuary's walls and two ring pessaries on the west side. The church is surrounded by an arcade. After restorations which were necessary due to the 1978 earthquake, frescoes daiting from the late 14th century came to light. The church is considered to date from the 17th century. The monastery, confirming its spiritual role in the Orthodox environment, hosts the Patriarchal Institute for Patristic Studies, a museum, libraries, a bookstore and a gift shop in newer buildings that were added to the complex.