Looking back at Pittsburgh's history, you come across many world famous industrial and business magnates who had a large presence in the city: Carnegie, Frick, Heinz, Westinghouse, and Mellon are just a few you may have heard of.
As their fame was spread to the corners of the world, their wealth at home grew, and so did their local estates.
In other cities these estates would likely have been handed over to foundations to ensure they stand the test of time, but in Pittsburgh many have been demolished over the years. Out of all of the famous Pittsbughers listed above, the estate of only one businessman, Henry Clay Frick, still stands- and it is kept in working order exactly as it was left as a part of the Frick Collection.