D-Day Museum (Musée du Débarquement)

The artificial harbor was constructed from 600,000 tons of concrete, 33 jetties, and 16 km of floating roadways. Approximately 45,000 workers in 300 British engineering companies built the components in secret before towing them across the English Channel.

After the 50th British Infantry Division captured Arromanches on June 6, 1944, construction began the next morning. The first floating road was operational by June 14 — just 8 days later. The harbor was designed to last 3 months but remained operational for 8-10 months.

During its operation, Port Winston handled 2.5 million soldiers, 500,000 vehicles, and 4 million tons of supplies. At peak capacity, it processed 7,000 tons of equipment daily — roughly equivalent to Dover harbor's capacity.

The original 1954 museum was designed for 30,000 annual visitors but eventually received over 300,000 per year. Before the 2023 renovation, it had welcomed more than 20 million visitors across nearly 70 years of operation.