Ostend is a city on the Belgian coast. It’s known for its long beach and promenade. Docked in the marina, the Mercator is a 3-masted 1930s ship that now acts as a floating museum. The Mu.ZEE displays Belgian art from the 1830s onward. The neo-Gothic–style Church of St. Peter and St. Paul has soaring spires and distinctive stained-glass windows. Near the harbor, Fort Napoleon is a 5-sided fortification built in 1811.