Image by Sabrina Dalbesio Getty Images
A flashback to penny arcades, the Musée Mécanique houses a mind-blowing collection of vintage mechanical amusements. Sinister, freckle-faced Laughing Sal has freaked out kids for over a century, but don't let this manic mannequin deter you from the best arcade west of Coney Island. A quarter lets you start brawls in Wild West saloons, peep at belly dancers through a vintage Mutoscope and even learn a cautionary tale about smoking opium.
Of all the human-made stuff at Fisherman's Wharf, this is by far the most fun.