Complex sentence: The Philadelphia Club, founded in 1834 and located at 13th and Walnut Streets in Center City, Philadelphia, Pennsylvania, is the oldest city club in the United States, and one of the oldest gentlemen's clubs.
Split into simpler sentences: The Philadelphia Club is founded in 1834 and located at 13th and Walnut Streets in Center City, Philadelphia. It is the oldest city club in the United States and one of the oldest gentlemen's clubs.