The San Juan Cathedral was built in the 1520's. The original church on these grounds had wooden walls and a thatched roof. It was destroyed by hurricane on October 4th 1526, rebuilt in 1540, looted in 1598, and damaged by another hurricane in 1615. The Cathedral as seen today is the result of work done in 1917, when major restorations were performed. This Cathedral is an authentic and rare New World example of medieval architecture. The Cathedral contains the marble tomb of the island's first governor Don Juan Ponce de León and the relic of San Pio, a Roman martyr. San Juan Cathedral still holds services on a regular schedule. It is also open for tours daily from 8:30 a.m. to 4:00 p.m.