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Richard joins the crew of one of the biggest moving objects on earth, the Marie Maersk container ship, on her continuous 28,000-mile voyage from Asia to Europe.
Richard explores one of the world's biggest man-made engineering projects: the Kölnbrein Dam, which can hold back an incredible 200 million tonnes of water!
In this edition, Richard ventures beneath the Alps into the world's longest underground railway connection, the Brenner Base Tunnel.