Walk down the Calle Loreto, a paved Inca road of unrivalled length in Cuzco, and enjoy a magical timeless moment. As you go past two of the town's major edifices (Wayna Cápac palace and Acclahuasi), it is impossible not to try and imagine what life was like at the time of the Incas that built it. Admire the way the stones fit together perfectly, a testimony to this civilisation's architectural genius.