Of Etruscan origins, due to its strategic position of control of the territory by the Orvieto families, in the following centuries it experienced a strong urban development. It was a fief of the Avveduti, a family of Orvieto origin and remained under the jurisdiction of Orvieto together with the nearby fortress of Castel Rubello before joining the Papal States and finally the unification of the Kingdom of Italy.
Porano preserves the typical appearance of the fortified medieval village: the perimeter is delimited by a circle of walls that encloses the nucleus. To see in the historic center is the town hall and the church of San Biagio (14th century) with two 14th century frescoes of the Orvieto school depicting San Biagio and the Annunciation, a 17th century holy water font and in the sacristy a 15th century cross.
In Porano the beautiful Villa Paolina stands out (initially Villa del Corgnolo, in the 18th century), built by the Gualterio family and later sold to the Viti-Mariani family of Orvieto. The Marquis Paolina Viti modified the original structure and from it the villa took its current name. Today the villa looks like an elegant architectural complex with its Italian avenues and gardens, it has one of the most important historical parks in the region as well as the Istituto di Biologia Agroalimentare e Forestale (CNR) and also hosts various cultural events throughout the year.
In the villages of Settecamini and Molinella there are historical and archaeological sites, discovered as early as the 19th century. This area has Etruscan tombs (Golini I and II, named for the discoverer Domenico Golini) and the tomb of the Hescanas (4th century BC). These are rare examples of Etruscan tombs with frescoed walls. To preserve the frescoes of Golini I and II tombs, in the early 1950’s the walls were detached and are now exhibited in the Archaeological Museum of Orvieto. This operation was not done for the tomb of the Hescanas which today maintains its original frescoed walls and can be visited by appointment with local guides.