The Fortifications of Quebec are a series of defensive walls and structures that surround the historic city of Quebec City, Canada. Built primarily in the 17th and 18th centuries, these fortifications were designed to protect the city from potential invasions, particularly during conflicts between the British and French empires. Today, the fortifications are recognized as a UNESCO World Heritage Site, showcasing the military architecture of the period. Visitors can explore various sections, including the Citadel of Quebec, which remains an active military installation, and enjoy panoramic views of the city and the St. Lawrence River.