American architect Frank Lloyd Wright designed Fallingwater in 1935 as a vacation home for the Edgar J. Kaufmann family, owners of Pittsburgh’s largest department store.

The Martin House was a Frank Lloyd Wright design built between 1903 and 1905 for Buffalo businessman Darwin Martin and his family.

Graycliff was designed by architect Frank Lloyd Wright between 1926-1931 for Isabelle R Martin, wife of industrialist Darwin Martin, as a summer home for their family.