I visited Sagamore Hill, the country estate of President Theodore Roosevelt, dubbed the 'Summer White House.' Take a look.

Sagamore Hill on Long Island, New York. Gabbi Shaw/Business Insider I visited Sagamore Hill, the grand country home of President Theodore Roosevelt. During his presidency, it was called the Summer White House. Now, the estate on Long Island, New York, is open to the public. Have you ever wondered what, exactly, brought about the end of the Gilded Age? Look no further than our 26th president, Theodore Roosevelt, who was inaugurated in 1901 after the assassination of William McKinley, and piv...