A monumental steel stair connects the ground level to the lower levels of the National Museum of African American History and Culture in Washington DC. It boasts no structural supports, weighs 80,000 lbs, and was fabricated by SteelFab, which won an award from the Washington Building Congress for the work. Photo 6 of 27 in Architecture in the Wild by Amanda Dameron

Architecture in the Wild

6 of 27

A monumental steel stair connects the ground level to the lower levels of the National Museum of African American History and Culture in Washington DC. It boasts no structural supports, weighs 80,000 lbs, and was fabricated by SteelFab, which won an award from the Washington Building Congress for the work.