University of Caxias do Sul has a lively campus that many travelers enjoy exploring. Call ahead to ask about tours and visiting times.
You'll have no end of sightseeing choices in Petrópolis. University of Caxias do Sul is a great place to begin here, but there are lots of other fine spots to consider. Sao Pelegrino Church, Vinícola Tonet Winery, and Caxias do Sul Cathedral are near the modern university and will top off your day nicely.