Your tour of Pittsburgh should start here. The Fort Pitt Blockhouse.  It is the oldest building in Pittsburgh and west of the Appalachian Mountains. Point State Park was the home to two pre-Revolutionary War forts. Fort Duquesne and Fort Pitt, The Blockhouse dates back to 1764. Look around, and you will see modern bridges connecting the old. How technology has changed. History of the Blockhouse Some times called Bouquet’s Blockhouse[ or Bouquet’s Redoubt. TheBlock House was constructed in 1764 as a defensive military redoubt. Henry Bouquet initiated the construction of a small number of redoubts around the outer walls of …