Constructed originally by the Romans, renewed by the Visigoths, expanded by the Moors, and enlarged again after the Christian reconquest, Toledo's walls are surprisingly complete today, with well-preserved reminders of their - and the city's - mixed history. 

You can walk along the walls, stopping in the little parks and at the gates that gave access to the city. The only remaining part of the Moorish town walls is the Puerta Vieja de Bisagra, a ninth-century entrance gate. 

Typical of Muslim architecture, the gate features horseshoe arches; a central arch is the entrance, and two blind pointed arches are for decoration. 

This monument is also known as the Puerta Vieja de Alfonso VI because the king made his entrance to Toledo in 1085 through this gate. The 14th-century Puerta del Sol is also impressive, built by the Knights Hospitaller