17. Sydney / San Francisco

On this field trip to Sydney, Australia, Gadget finds out what the life of an island-prisoner was like at the Hyde Park Barracks, he visits the first European colony at The Rocks, and steps aboard the Solaway Lass to get a feel for an old-time sea voyage. And he's not fooled by the ten sails on the Sydney Opera House – they're just for show! Next, Gadget escapes to Alcatraz to find out how three resourceful prisoners broke out of this former island prison, and he visits the actual cells of gangster Al Capone and bank robber Machine Gun Kelly. Next he stops off at Ghirardelli Square to explore the art of chocolate-making, then takes off to the California Academy of Sciences where he's shaken up by a simulated earthquake, or "fake quake."