Basilica of Santa Eulalia

The ground beneath documents four phases: 1) Roman houses (domus) between the 1st and 3rd centuries AD; 2) in the 4th century, a Christian cemetery with a barrow or mausoleum in memory of the martyr Saint Eulalia (a late Roman martyrium); 3) above it, in the 5th century, a great Early Christian/Visigothic basilica, whose upper front survives closing the present apse; 4) the church visible today, Romanesque/late Romanesque, rebuilt around 1230 on the earlier plan.

In the crypt you can make out the walls of the Roman houses, burials from the cemetery, remains of the martyr's mausoleum and Visigothic elements, with an interpretation centre. The «Hornito de Santa Eulalia», the chapel in the atrium, reuses material from a Roman temple dedicated to Mars. Well preserved and presented as a museum. (Whether the first basilica is Visigothic or 5th-century Early Christian varies from source to source.)