It's as far from a fusty old museum as you can get, with engaging exhibits filling a stylish new building. Step into a Victorian bathing machine, heft a cannonball and try your hand at Punch 'n' Judy. Look out for cannons from a 16th-century Venetian shipwreck, and displays on Admiral Pellew, the inspiration for author CS Forester’s Hornblower series of novels.





