Las Ventas is the largest bullring in Spain and one of the country's great pieces of neo-Mudéjar architecture — a vast brick drum dressed in glazed ceramic, built in 1929 in a revival of the Moorish craft Spain spent centuries half-forgetting. This walk takes the building for what it is and then leaves the spectacle behind.
Start by circling the ring itself. José Espeliú's façade is a catalogue of Spanish ceramics: horseshoe arches, brick laid in herringbone, a medallion of every province glazed into the walls. Read the tiles like a map. Then drop down Calle de Alcalá into the calm eastern edge of Salamanca, the 19th-century grid, on the way to the day's real surprise.
The Parque de la Fuente del Berro is a steep little Romantic park folded into the land, with a spring-fed pond, peacocks on the lawns, and a statue of Pushkin from Moscow. The motorway roars below and you'd never know. Climb out the far side into ordinary neighbourhood streets around O'Donnell, and take the metro from El Carmen.