Smithsonian American Art Museum Landmark located in Washington, D.C.'s downtown cultural district. It is considered an example of Greek Revival architecture in the United States. It was designed by architects Robert Mills, and Thomas U. Walter. During the 1990s, the Smithsonian Institution worked on restoring the building. The Smithsonian completed another renovation of the building in July 1, 2006. The 2000-2006 renovation restored many of the building’s exceptional architectural features: restoring the porticos modeled after the Parthenon in Athens, a curving double staircase, colonnades, vaulted galleries, large windows, and skylights as long as a city block. During the renovation, the Lunder Conservation Center, the
Smithsonian Institution Shelter a steel truss frame. The shelter has a log book hikers may sign. The site has been considered for National Historic Landmark status, but has not been recommended for submission yet. However, in 1977 the Smithsonian Institution Shelter was placed on the National Register of Historic Places. Smithsonian Institution Shelter The Smithsonian Institution Shelter, also known as the Mount Whitney Summit Shelter, was built in 1909 on the summit plateau of Mount Whitney, in the Sierra Nevada within Sequoia National Park, in California. The shelter at the summit was proposed after Byrd Surby, a U.S. Fisheries employee, was struck and