This house is a National Historic Landmark because it's associated with two very important people, the son of the original builder, Thomas Heyward Jr., a signatory of the Declaration of Independence, and a prominent guest in 1791, President George Washington. Upstairs, in the Drawing Room, parties were held for President Washington, where he danced with numerous ladies of the Charleston aristocracy. When the party was over the men would repair to the Withdrawing Room where they would discuss business, politics, and the burning issues of the day. If you visit that room, you'll find a painting of a previous owner of the house by a young Samuel F B. Morse, the future inventor of the Morse Code. Also, the green bedroom contiguous to the Drawing Room is where Washington slept during his stay in Charleston.