Royal palaces, magnificent gardens,outstanding museums, a triumphal arch ... discover this unique perspective! A sweeping majestic perspective, opened up by Catherine de Medici in the 1560s, crosses Paris, from the Louvre to the west, aligning landmark sites in the capital including palaces, French gardens, a huge square, a mythical avenue, and a triumphal arch. Today, this historic route still impresses and delights visitors who, by walking in a straight line for 3 kilometres, can journey through the history of Paris, from its most glorious to its most tragic periods.