When was the Oral Roberts University Prayer Tower built?

Designed by Tulsa architect Frank W. Wallace, the ORU Prayer Tower became operational in early 1967. This Tulsa landmark is 196 feet tall, houses 99 bells, has the capability to sustain a 6 foot plume of flame, and cost more than $1 million to build.

Source:  Tulsa World, November 25, 1966 and Tulsa Tribune, May 25, 1977 in the Mid-Week Section.