Fast-forward to 1994, long after the McCormicks had departed the house and its final occupants had sold it to a local arts and civic center foundation. The house was hauled from its original lot to a nearby park. Three years later, it was incorporated into a new museum designed by Chicago architects DeStefano + Partners. A metal-and-glass corridor attached the house to the museum proper. But the two buildings were so much alike, according to John McKinnon, the museum’s current executive director, that visitors often asked where the house was — even when they were standing in it.