A Boston Brahmin society haunt for more than 100 years, this tree-lined track has played host to three U.S. Opens and the 1999 Ryder Cup. Its tournament course is a composite layout, comprised of 18 of the club's 27 holes. The Clyde/Squirrel combo was used for the 1913 Open when local lad Francis Ouimet stunned the Brits. The current "Open" course borrows several holes from the Primrose nine, designed by William Flynn in 1927.