The remnants of the monastery of St. Andrew are located on the outskirts of the village of Betiga. There were also a number of floor mosaics, tombs, traces of frescoes and other similar objects found. Furthermore, the remnants of the trefoil-shaped chapel from 4th to 5th century can be found, with multicolour floor mosaics and tomb in each of the chapel's apses. The original chapel was later incorporated into the newly built triple-nave basilica, of which the centre nave also had floor mosaics with the names of patrons. On the northern side of the triple-nave basilica, you can find an atrium with cistern surrounded with porticoes, and living and estate premises.
In the early middle ages, a baptistery with an apse and a new burial chapel were built by the southern side of the basilica. It is believed that the whole complex was part of the Benedictine monastery during the 7th or 9th century and that, in that same period, it was thoroughly renovated. Furthermore, from the 9th to the 13th century, the Benedictines built a completely new part of the complex, which comprised of a monastery with atrium, cistern and other, living premises. The monastery and the church were abandoned during the 13th century because of the plague.
Today it is surrounded by a metal fence in order to prevent further devastation.