Expo 2015 logo: Leonardo da Vinci's Vitruvian Man makes the world go round.

The emblem of Milan's bid to host Expo 2015 is the universally renowned Vitruvian Man by Leonardo da Vinci, a symbol of mankind’s position at the heart of world dynamics. Da Vinci is the humanist scientist par excellence, an all-round man of genius who spent much of his life in Milan, pioneering methodical scientific research into the human body and leaving behind him an inexhaustible source for both artists and engineers. He stands eternally as an inspiration for anyone who sees personal well-being as the vital spark in the life of a community.