Beginning your tour in the Barrio de la Morería, which used to house a historic Arab Courthouse, you then come to the Casa del Pastor, the very first Government building, covering Madrid and Toledo. From here, you are in a brilliant location for exploring the three squares which formed Medieval Madrid: Plaza de la Paja, which was a centre for trading, Plaza de San Andrés, where one of the city's oldest parish churches once stood, and Plaza de la Cruz Verde, where the cavalry which used to enter through the "Puerta de Moros" used to stand. Then, passing two Mudejar buildings; San Nicolás de los Servitas and the Torre de San Pedro el Viejo, you arrive at the Casa de los Lujanes, which stands in Plaza de la Villa.