Paris, its secrets and its wonders. The Bridges of Paris and the Seine have been declared a world heritage site by UNESCO. Alberto Angela, aboard a vintage boat, travels along the Seine, using the river as a journey through time. He explores Paris in various stages: from the top of the Arc de Triomphe, to the Eiffel Tower, to the towers of the spectacular Nôtre Dame Cathedral. The appointment with the Eiffel Tower is unmissable, as told by Alberto Angela in all its details, and the surprising transformations of Paris at the end of the nineteenth century: from the birth of the department stores to the many attractions of Montmartre, to the cafés of the Latin Quarter. And then the changes that occurred in the twentieth century: from Beaubourg to Défense.