In the Oakland section of Pittsburgh, Pennsylvania is the old Central Kingdom Hall. In it's heyday, it was the number one KH in the tri-state area (PA, Ohio and West Virginia). It is where most people were baptized from the 1950's into the 1970's when the assembly hall was built. It is also the home cong. of Al Schroeder who became a bigwig in Brooklyn.
The place was sold a number of years ago and is now a big deal Islamic center.