The church of Agios Georgios is near the village cemetery. It is on
a dirt road going north towards the Kastelli. It contains frescoes from the fourteenth
or fifteenth century, probably by the Fokas brothers.
Hersonisos was also an important Byzantine area and the seat of an
archbishop from the first Byzantine period. A triple-aisled fifth century basilica
has been excavated in Kastri--one of the largest on Crete. The floors of the church
are covered with mosaic. East of the town there is another basilica dating from
the sixth century and its floors are also covered with mosaic.
This text is cited Feb 2003 from the Crete TOURnet URL below, which contains images.