Complex sentence: The archaeological excavations have brought to light some impressive ruins such as a temple of Apollo, an extensive Early Christian settlement (from the very few known in Greece), as well as four basilicas that belong to the same period.
Split into simpler sentences: The archaeological excavations have brought to light some impressive ruins. A Temple of Apollo, an extensive Early Christian settlement (from the very few known in Greece), as well as four basilicas that belong to the same period.