The site is designed to reflect the same level of quality and sophistication as other iconic MGM hotels while respecting the geography and history of the area. A 23-acre destination resort casino, the project also includes a mix of retail, entertainment and dining. MGM National Harbor is a $1.5 billion mixed use resort, the newest addition to the booming, multi-use National Harbor development situated along the Potomac Riverfront. A National Association of Landscape Professionals (NALP) and Landscape Contractors Association (LCA) award-winning project.