On the blue metro line, you can go to the station of Luz, which dates back to the nineteenth century. It's a historical site, where you can visit the Museum of the Portuguese Language. If you visit the museum at the weekend or on a holiday, you can enjoy a guided tour of the station. You can also cross the street to visit the park. It is a beautiful place to visit, and will be your starting point for many excursions.
On Fridays, Saturdays and Sundays we go back one century and a ride on the steam train between Tiradentes and São João del Rei, it is called "Steam Train", and it has wooden carriages and all the flavors of the colonial era. The trip takes about 30 minutes more or less and it is less than 20 kilometers, which gives you an idea of the speed, but there they are not in a hurry. It leaves at 11h00 from Tiradentes, and at the Sao Joao station del Rei there is a Railway Museum where Baldwin exposes the first locomotive used in the maiden voyage of the "Estrada de Ferro Oeste and Mines" in August 1881.