The Mausoleum of Theodoric, a decagonal structure, is the monument that reveals Roman art in its purest form, at once austere and graceful. Built using enormous blocks of stone from Istria, it extends to two floors. Covered with a great monolith thirty-six feet in diameter, three feet thick, and weighing more than 300 tonnes, it is probably one of the greatest monoliths in the world to be used as a cupola. Location : Ravenna ItalyDistance from Hotel City - Milano Marittima : 24 km / 00h30