Charleston is often called the Holy City. Since we don't have many true high rise buildings the Church spires stand out clearly in the skyline of the peninsula. Here is the story according to Wikepedia:
Charleston is known as The Holy City due to the prominence of churches on the low-rise cityscape, particularly the numerous steeples which dot the city's skyline, and for the fact that it was one of the few cities in the original thirteen colonies to provide religious tolerance to the French Huguenot Church. In fact, it is still the only city in the U.S. with such a church. Charleston was also one of the first colonial cities to allow Jews to practice their faith without restriction. Kahal Kadosh Beth Elohim, founded in 1749, is the fourth oldest Jewish congregation in the continental United States. Brith Sholom Beth Israel is the oldest Orthodox synagogue in the South, founded by Ashkenazi (German and central European) Jews in the mid 19th century.
The only one in this series that is not on the peninsula is the Old St. Andrew's Episcopal Church in the first photograph which is on Ashley River Rd. There are so many I haven't included and we have a few covered in scaffolding at the moment. I can easily do a part two as well as a series on the beautiful rural lowcountry churches.
I am sure you can find one to attend on Sunday, and odds are I'll be outside taking your picture ;). I made a calendar for my Dad in Canada, of these southern churches, and people kept buying them from me before I could mail them to him. He finally got his a year and a half later.