Caxias do Sul (pronounced cah-SHEE-ahs DOO SOOL) is the capital of the Gaucho Highlands region and the second most populous city in the state of Rio Grande do Sul. With an enviable quality of life, strong economy and incomparable natural beauty, Caxias do Sul is one of the most livable cities in Brazil. Viação Caxiense is headquartered in Caxias do Sul.

Like Bento Gonçalves, Caxias do Sul is one of the most Italian cities in Brazil. The Italian immigrants that settled here made enormous contributions to the arts, industry and organization of the city.

The biennial Grape Festival is a celebration of the region's Italian culture and agro-industrial production. During the Festival, with events in the center of the city and the Festival Pavilions, visitors can sample the delicious grapes and wines of the region.

Notable tourist attractions include the Grape Festival Pavilions, St. Pelegrino Cathedral, Marcopolo Bus Factory, Monument to the Immigrant and the House of Stone.