When traveling I usually check out the local Episcopal cathedral. You will be pleased with a Sunday visit here. The choir is professional-class quality and the cathedral itself is beautiful. Take time to examine the stained-glass windows, which are superior to those seen in other churches in St Louis. The congregation was quite friendly.
Lovely cathedral . wish we could have seen inside .. maybe next time. It's right downtown .. we saw it while walking around. towards dusk homeless converged around it and started bothering us so we decided to get out of the area.