Fort Boykin has been a part of American history since 1623 when a fort known as the Castle was constructed to protect the Jamestown colonists from Native Americans and raiding Spaniards. Now on the Virginia Birding and Wildlife Trail, it is also listed on the National Register of Historic Places, Virginia Landmarks Register, Virginia Civil War Trails, Captain John Smiths Trail and the Star-Spangled Banner Geotrail and the Cornell eBird System. Free guided walking tours available.