Church of St. Peter and Moses is the most important protoromanic building in Solin, that is very interesting because the church itself is church with written apses, westwerk on the west side, and because of the findings of the fragmentary altar part with reliefs. For old Croatian history it is significant as the crowned Basilica of King Zvonimir. There are multiple research resoults of Saint Peter and Moises church. First of their date from 1927. are and made by society „Bihać“. Other known research reports are from Eyynar Dyggve, Mate Zekan, Miljenko Jurković, Tomislav Marasović and Ante Piteša. Today, the hollow church, located only ten meters from the River Jadro, left in a state as it was after excavation made by Danish archaeologist E. Dyggve. It is encircled and the access is limited, but the view of the complex of the former old Christian church from the 6th century and the pre-Romanesque church of St. Peter and Moses are open. The most significant protoromanical monument in Solin, excavated over ninety years ago, is still relatively unknown to the general public and somewhat neglected and forgotten.