The Dutch excavations of M. J. Vermaseren and C. C. Essen in the mid 20th century also revealed there to be paintings in the temples underneath the church. The whole sanctuary was found to have been originally painted by the members of the cult. The Mithraeum's entrance had been stuccoed and painted red, also featuring a painted blue ceiling with stars. Both the temples within the Mithraeum have paintings of an initiate processional and Sol seen with pierced rays for illumination as well as painted remnants which are believed to be fruit baskets and flowers.