Mansion of Charles Schwab, president of the Bethlehem Steel Corporation, on Fifth Avenue in New York City. It occupied an entire city block. Meanwhile, Bethlehem Steel's factories were death traps for many workers.
Huntington mansion on Fifth Avenue. It was built by George B Post for Huntington and his wife, Arabella. The fortress was one of the largest homes in New York City, second only to it's neighbor, The Cornelius Vanderbilt II mansion.
1884 Ogden Goelet Mansion, of the Gilded Age in NYC. Location: 608 Fifth Avenue. Gilded age is a term from Mark Twain book A Tale of Today from The book satirized an era of serious social problems masked by a thin gold gilding.