Front Door, Oheka Castle, Huntington, New York - In 1905, a previous country home of Kahn's, Cedar Court in Morristown, New Jersey, was virtually destroyed by fire. In constructing Oheka, Kahn determined to build a fireproof building, so he had his architects, Delano and Aldrich, design the building out of steel and concrete, making it one of the first totally fireproof residential buildings.