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Roman City of Complutum (Alcalá de Henares)
Complutum is the only Roman municipium in the Community of Madrid and the origin of present-day Alcalá de Henares. Its forum, basilica, market, and baths are the region's most accessible Roman layer. The site is maintained by the Comunidad de Madrid and published on the Alcalá tourism portal with visiting hours and free admission. The double-layer toponymy — Complutum (Roman) to Al-Qal'at (Arabic) to Alcalá — makes this place a palimpsest of the first two eras. Anchor modes: custodian | signal | Search hooks: Roman City of Complutum (Alcalá de Henares); Complutum forum basilica baths; Alcalá de Henares yacimiento romano; Roman Madrid archaeological site; Complutum market streets
Walk through the excavated forum, see the monumental façade and basilica, view Roman murals at the Casa de los Grifos, and visit the House of Hippolytus — all with free admission Tuesday through Sunday.