The katholikon was built in the tenth century in the Athonite style. It is dedicated to the Annunciation of the Blessed Virgin Mary. The katholikon still retains some mosaics from the Byzantine period. There are nineteen chapels in and around the monastery proper, with five within the katholikon.
The north-east tower which houses the monastery library (10th century)
The Greek skete of St. Demetrios
The skete of St. Demetrios belongs to the Holy Monastery of Vatopedi and is a Greek idiorrhythmic skete, resembling a settlement and consists of 21 kalyvae, most of which are now in ruins. It is located in the mountains; a half hour walking distance from the Vatopedi monastery and has been operating as a skete since the 18th century. The "Kyriakon" is dedicated to St. Demetrios. It was built in the 12th century; it was renovated and later expanded and was frescoed in 1755.
The Russian Skete of St. Andrew in Karyes (or Serrai)
The Russian Skete of St. Andrew is a huge building complex located on the road that connects Karyes with Daphne and follows a classic architectural paradigm of Athonian monasteries, i.e., it is surrounded by tall buildings overlooking an internal court.
It is called a skete because, according to the customs and the statute of Mount Athos, it is not possible to found new monasteries, besides the ones of the Byzantine era. It was built with the financial sponsorship of the Russian Czars, and many Russian monks practiced ascetic life here. Indeed, just before World War I, the skete was inhabited by approximately 700 monks. Nowadays five Greek monks reside here and have taken upon them to revive the skete and deal with the preservation of the icons and the maintenance of the premises.
The central church of the skete was built in 1867. It is the largest church on Athos, rising to 30m in height and extending to 60m in length. The relics of St. Andrew are kept in the interior of the church.
In addition to many relics, the monastery possesses a library of over 10,000 printed books and about 1,700 manuscripts. Relics include the Belt of the Virgin Mary (H Zoni ths Theotokou), which she gave to Thomas the Apostle during her transition to heaven.
There are a number of miracle-working icons in the monastery. The best-known icons are:
Panagia Pantanassa, the "Queen of All"
Panagia Ktitorissa the Vymatarissa