Portland Head Light was built in 1791. Commissioned by George Washington and dedicated by the Marquis de Lafayette, it is the state's oldest lighthouse. Portland Head has a white conical tower and a Victorian keeper's house with a red roof and eyebrow eves on the porch. You can visit the museum in the former keeper's house, which sits in Fort Williams Park, off Shore Road in Cape Elizabeth. Many Casco Bay boat tours pass this light. You can also take a bus tour to the lighthouse. The tower is only open in September on Open Lighthouse Day, when access is very limited.