16. Going-to-the-Sun-Road, Glacier National Park, Montana
Going-to-the-Sun Road was completed in 1932 and is a spectacular 50 mile, paved two-lane highway that bisects Glacier National Park east and west. It spans the width of the Park, crossing the Continental Divide at 6,646-foot-high Logan Pass. It passes through almost every type of terrain in the park, from large glacial lakes and cedar forests in the lower valleys to windswept alpine tundra atop the pass. Scenic viewpoints and pullouts line the road.
Photograph by at38000feet on Flickr
In 1983 Going-To-The-Sun Road was included in the National Register of Historic Places and in 1985 was made a National Historic Civil Engineering Landmark.