This byway, with several branches that reach toward the Potomac River, incorporates many of the nation's oldest churches, the site of the first Roman Catholic Mass held in English-speaking America, and Maryland's colonial capital, Historic St. Mary's City. For some travelers, it is a spiritual pilgrimage; others simply admire the history. Either way, it is an inspirational journey through beautiful countryside, allowing you to commune with nature while traveling into the heart of the Southern Maryland Heritage Area.