In the ancient town of Trevi, in Umbria, Italy, in the Province of Perugia

 "Why are there so many songs about rainbows

And what's on the other side?
Rainbows are visions, but only illusions
And rainbows have nothing to hide
So we've been told and some choose to believe it
I know they're wrong, wait and see
Someday we'll find it, the rainbow connection
The lovers, the dreamers and me...."
-- a few lines from "Rainbow Connection,"a song from the 1979 film The Muppet Movie (about Kermit the Frog)
=====================================================================
(in Umbria, Italy, in the Province of Perugia.) The ancient town of Trevi is located 10 km (~6 mi.) southeast of Foligno and 20 km (~12 mi.) north of Spoleto.

+ On the lower flank of Monte Serano overlooking the plain of the Clitunno river system, the patron saint of Trevi is St. Emiliano; his feast is celebrated on 27 January with a night-time procession of the Illuminata, in which his statue is carried out of the Duomo around the city. Shrove Tuesday sparks a public celebration in the main piazza, and in August, a 3‑week-long music festival; but the main annual festivals take place in October.

+ In central-west Umbria between Foligno and Spoleto, Trevi rises from the slopes of Mount Serano, which are carpeted in olive-tree plantations that overlook the Spoleto Valley. Churches, towers ,and palaces give a noble silhouette to the town that stands at 412 meters, offering a breathtaking view onto the Via Flaminia.
+ Founded by the Romans, it was an important town along the Flaminius Way. At the fall of the Roman Empire, having already been Christianised by Bishop Emiliano, it was occupied by the Longobards and included in the Duchy of Spoleto. During the Middle Ages Trevi was ruled by Foligno and Spoleto. Political and military instability continued until the 16th century when, after domination by various lords, Trevi became part of the Papal States, except for the Napoleonic period, until 1860.

+ Immersed in olive plantations, Trevi offers evidence of its Roman period in the mighty town walls that encircle the historical center; and the period of the Middle Ages can are reflected in the three city gates: Porta del Bruscito, Porta del Cieco, Porta S. Fabiano -- and the archway, Arco del Mostaccio. Among the most interesting religious buildings here is the church of Sant'Emiliano. Also worthy of a visit is the Gothic church of San Francesco, and the 15th-century Palazzo Comunale, Town Hall, is the Pinacoteca art gallery. The church and the Pinacoteca, together with the Town Museum and the Archelogical Collection, make up the Raccolta d'Arte di S. Francesco, a collection set up in 1996 in a part of the S. Francesco Museum Complex. In the hamlet of Bovara is the oldest olive tree in Umbria, reckoned to be 1700 years old. It is known as the tree of Sant'Emiliano because the future patron saint of the town was tied to it and martyred. The Raccolta includes the Museo della Civiltà dell'Ulivo, which is the first public museum dedicated to olives and olive oil in all of Europe.

+ A rainbow in front of the ancient town of Trevi: