Robert Hobbs
Google
The Fort Pitt Block House is over 250 year's old, and is the oldest building authenticated west of the Mountain Range.
It was built in 1764, as part of the fort, to defend against Native American attacks. It has switched ownership numerous times throughout history, and was used as everything from actual part of the fort, to trading post, to private residence and today it stands as the only truly remaining portion of the fort left standing - while the rest, was torn down to help build the city.
It's a small building, but a spectacular one, at that, a true piece of history that transports you back in time as you walk around and inside of it.
Fun tip, look for the red dates on the walls, which is placed on the wall at the height of each year's great flood, standing as a true testimony to what this building has endured, including one flood that had the city under 15ft of water for a week and had submerged nearly the entire structure.
The man answering questions inside was very informative and helped bring it all to life.
Must see historical spot while in Pittsburgh located and surrounded by the nicest park in the city.