Fort Independence is a historic military fort located on Castle Island in Boston Harbor, Massachusetts. Originally built in the 17th century, it has undergone several renovations and expansions over the years. The fort played a significant role during the American Revolutionary War and the War of 1812, serving as a strategic defense point for the city of Boston. Today, Fort Independence is a popular tourist attraction and part of the Boston Harbor Islands National Recreation Area. Visitors can explore the fort's stone walls and learn about its history through guided tours. The site offers scenic views of the harbor and the surrounding area.