The Whitney Restaurant is located in Detroit, Michigan. The Whitney Mansion in Detroit has been a home, a hospice, and is currently a restaurant that boasts opulent dining rooms and a grand feel throughout the 22,000-foot property. The Whitney Mansion was built in 1894 by David Whitney Jr and is located in Detroit. It’s estimated to have cost $400,000, which translates to $9.5 million in today’s money, and has had…