Barnacle Historic State Park Constructed in the late 19th century, this distinctive home on the water’s edge served as the original residence of pioneer Ralph Munroe. It’s the oldest standing house in Miami-Dade County, having survived hurricanes and other natural disasters, and today operates as a historical site. For just $2 (free for kids five and under), you can explore the home and the old boathouse—or pencil in one of its many public events, like seasonal theater productions and live entertainment.