The Greek-Catholic Archcathedral in the old Baroque church of the Sacred Heart of Christ built for the Jesuit order in the 17th c. In the 20th c. it was a military church. In 1991 Pope John Paul II handed the church over to Greek Catholics, who adapted it for the purposes of the Eastern rite. When inside, do not fail to see the 17th-c. iconostasis from the church in Lubaczów. Next to the archcathedral there is a modern-day belfry.