Complex sentence: LaVey also established branches of the Church, known as "grottos", in various parts of the United States; these included the Babylon Grotto in Detroit, the Stygian Grotto in Dayton, and the Lilith Grotto in New York.
Split into simpler sentences: LaVey also established branches of the Church, known as "grottos", in various parts of the United States. These included the Babylon Grotto in Detroit, the Stygian Grotto in Dayton, and the Lilith Grotto in New York.