The Church of St. Nicholas is situated on the Island of Sušac, 23km West from the Island of Lastovo. The Island was inhabited in ancient times. An Early Christian Church, probably dedicated to St. Michael, was built in the 6th century. This building will be adapted into an early medieval Church dedicated to St. Nicholas.
Since the earliest mentioning of the Church is in the 12th century representing the terminus ante quem for its dating, researchers believe that it was probably built at the end of the 11th century. The Church today is in ruins.
Its a single nave vaulted building with an apse (semicircular in the inside and rectangular on the outside). In the interior it had three lesenes which were connected to each other by arches and closed the barrel-shaped lintels of the side niches and at the same time formed the basis for the construction of the barrel vault of the Church nave. A typical feature of this church is the "pseudo-basilica" roof. No decoration was found.