PHOTOS: A look inside former President Theodore Roosevelt's "Summer White House" mansion in Oyster Bay

OYSTER BAY, Long Island (WABC) -- Sagamore Hill, President Theodore Roosevelt's "Summer White House," is a National Historic Site on Long Island.

The three-story, 28-room Long Island mansion, named by Roosevelt after the Indian chief Sagamore Mohannis, was his home in in Oyster Bay, N.Y.

Roosevelt's mansion reopened in 2015 after a four-year, $10 million renovation by the National Park Service.

The Associated Press contributed to this report.