James City County is home to the Busch Gardens Williamsburg theme park, the Kingsmill Resort, and the Williamsburg Pottery Factory. The Historic Jamestowne and Jamestown Settlement attractions combine with Colonial Williamsburg, and are linked to Yorktown by the National Park Service's Colonial Parkway. Tourism is a major part of the region's economy, as is high technology. The College of William and Mary is nearby, as well as NASA, Jefferson Laboratory, and numerous defense contractors, giving the region the highest concentration of scientists and engineers per capita in the nation.