Halifax Citadel is a historic fortress located in Halifax, Nova Scotia, Canada. Built in the 18th century, it was designed to protect the harbor and the city from potential attacks. The star-shaped structure features thick stone walls and a series of defensive works, making it a key military site during its operational years. Today, Halifax Citadel is a National Historic Site and a popular tourist attraction. Visitors can explore the grounds, learn about its history through exhibits, and witness reenactments of military life in the 19th century. The site offers stunning views of the surrounding area, including the Halifax waterfront.