Credit: FRIENDSHIP HILL NATIONAL HISTORIC SITE
Begun as a brick house in 1789, Albert Gallatin's country estate sits on the banks of the Monongahela River in southwestern Pennsylvania, and is today a National Historic Site. Gallatin made two major enlargements to the house during his residence there, adding a frame house in 1798, and stone house in 1823. Regardless of where his political duties took him, Gallatin considered this the family home until 1825, when his family convinced the statesman, now in his sixties, that it was too remote, and he moved east.
