Chieti is a city and comune in Central Italy, 200 km northeast of Rome. It is the capital of the Province of Chieti in the Abruzzo region. Chieti lies on a crest along the Pescara River a few kilometres away from the Adriatic Sea, and with the Maiella and Gran Sasso mountains in the background.
As Theate Marrucinorum, Chieti was the chief town of the warlike Marrucini. According to Strabo, it was founded by the Arcadians as Tegeate.
- The Gothic Cathedral, re-built by bishop Attone I in 1069.
- Oratory of Sacro Monte dei Morti.
- Church of San Francesco al Corso, founded in 1239.
- Church of Santa Chiara.
Under the church of SS. Pietro e Paolo and the adjoining houses are extensive substructures (in opus reticulatum and brickwork) of the 1st century CE, belonging to a building erected by M. Vectius Marcellus (probably mentioned by Pliny, H.N., II., 199) and Helvidia Priscilla. There are also remains of large reservoirs and of an ancient theatre. New excavations are currently under way on the site of the former Campo Sportivo.
- National Archaeological Museum of the Abruzzi "Villa Frigerii" - The rooms of the museum are dedicated to: Burial cults in pre-Roman Abruzzo / Italic sculpture / The Capestrano Warrior / The Pansa collection / The Sanctuary of Hercules Curinus at Sulmona / The Numismatic collection / Roman Iconography in Abruzzo.
- Art Museum "Costantino Barbella".
- Biomedical Science Museum (Paleopathology and Bioarchaeology).
- Archaeological Museum "La Civitella".
- Diocesan Theatine Museum.