Longfellow House-Washington’s Headquarters National Historic Site has long been a beacon to learners. George Washington came to Cambridge to lead an army, but ended up learning valuable lessons about New England and its people, leadership, politics, and himself. The house’s close proximity to Harvard University made it a prime location for boarders in the early 19th century including Josiah Quincy, Jared Sparks, Edward Everett, and Henry Longfellow. Beginning in 1843, Henry and Frances Longfellow, their family, and their friends created a vibrant center of culture and literature. Today, the National Park Service maintains the large collection of the Longfellow family’s belongings and a working archives, servicing researchers from all over the world. The gardens and grounds are free and open to the public year-round from dawn to dusk every day. Longfellow House open seasonally.