Trevi is a town in the Umbria region of central Italy, located on a hill overlooking the valley of the Clitunno River. It has a population of around 8,000 people and is known for its picturesque streets, historic architecture, and stunning countryside.

The town is particularly famous for its olive oil, which is considered to be some of the best in Italy. The annual "Sagra dell'Olio" festival celebrates this local specialty, and visitors can sample the oil, watch demonstrations of traditional olive oil production techniques, and enjoy local food and wine.

Trevi's historic center is characterized by narrow, winding streets and beautiful old buildings. The most famous of these is the 13th-century Palazzo Comunale, which houses the town hall and a small museum. Other notable buildings include the Church of Sant'Emiliano, which dates back to the 5th century, and the Church of San Francesco, which contains a number of important works of art.

The surrounding countryside is dotted with vineyards and olive groves, and there are many walking and hiking trails that offer stunning views of the valley below. The nearby Monti Sibillini National Park is also a popular destination for nature lovers, with its rugged mountains, crystal-clear streams, and diverse wildlife.