Bridges and tall buildings are often made from frame structures. Materials are put together to make shapes, such as squares and triangles. When building structures, it's important to remember that ...

In fact, Huntsville, Alabama’s current largest city, has only one structure on this list and that’s because the city once had ordinances limiting skyscrapers, according to the Huntsville Convention ...

“The RSA Trustmark Building is a steel framed 34-story, international-style office tower with a parking garage encompassing the first six floors,” according to the RSA website. The tallest ...