Centro
The historic heart — Puerta del Sol, Plaza Mayor, the Royal Palace, the Habsburg streets of Madrid de los Austrias. Mercado de San Miguel for the gourmet food market (touristy but good), Sobrino de Botín nearby (the world's oldest restaurant, 1725), Chocolatería San Ginés for churros at any hour. Walk it early or late — the middle of the day belongs to the tour groups.


