Travel-and-Home was in Parras, the oasis of the semi-desert in the state of Coahuila, Mexico, North America. If you ever have the opportunity to go to Parras, you absolutely should.  The best way to get to know a town’s history and all the sightseeing worth your while, is to do the tourist train tour. Of all the fun we had, the only disadvantage was that the tour guide could not speak English, so we did not have a clue what he was saying! Take plenty photos as you go along, and later it will fall into place as you pick up information pamphlets. Plaza del Reloj. The park is small…