The Maritime Museum, ensconced in Bermuda's largest fort, displays its collections in a series of old munitions warehouses that surround the parade grounds and Keep Pond. Insulated from the rest of the Dockyard by a moat and massive stone ramparts, it is entered by way of a drawbridge. At the Shifting House, right inside the entrance, you can wander through rooms filled with relics from some of the 350-odd ships wrecked on the island's reefs. Other buildings are devoted to seafaring pursuits such as whaling, shipbuilding, and yacht racing. More displays are in the 19th-century Commissioner's House, on the museum's upper grounds. Built as both home and headquarters for the Dockyard commissioner, the house later served as a barracks during World War I and was used for military intelligence during World War II. Today, after an award-winning restoration, it contains exhibits on Bermuda's social and military history. A must-see is the Hall of History, a mural of Bermuda's history covering 1,000 square feet. It took local artist Graham Foster more than 3½ years to paint. You'll also likely want to snap some photos of the sheep that graze outside the building: their job is to keep the grass well mowed.