Barcelona Cathedral, known locally as La Seu, has been the seat of the city's archbishops since the 13th century, though a Christian church has stood on this spot since Roman times. Construction of the current Gothic building began in 1298 and took 150 years, which is almost brisk by medieval standards. The ornate neo-Gothic façade, however, is a Victorian-era addition: the plain original bothered a wealthy industrialist enough that he funded the whole thing in 1889.

The cloister is the real surprise. Thirteen white geese live there permanently, kept in honour of Saint Eulalia, the cathedral's patron, who was martyred at the age of thirteen. There are also gargoyles on the façade, said to be witches, turned to stone mid-spit by divine intervention.

VoiceMap's tours use the cathedral to anchor Barcelona's deeper stories, from the medieval Jewish communities of El Call, whose Catalan-speaking descendants shaped law and culture across the Mediterranean, to the Gothic Quarter's layered Roman, Visigothic and medieval past.