National Airline History Museum is at 201 N.W. Lou Holland Dr. The museum is housed inside the 40,000-square-foot Hangar 9, which once held aviation operations for major airlines. Of particular interest are a 1959 Lockheed Super Constellation, or “Connie,” which is easily recognized by its triple tail and tip tanks on the wings; a Douglas DC-3; a Martin 404; and a Lockheed L-1011. Other highlights are artifacts, photographs, uniforms and navigation instruments.