Did you know there is a tram system to take passengers to the top of the Gateway Arch? The Gateway Arch in St. Louis, ...

What is inside the Gateway Arch ... a carbon steel framework which uses triangle cross-sections. As the arch rises up, the structure narrows from 54 feet at the base to 17 feet at the apex ...

Arch bridges are one of the oldest types of ... the stones in the rest of the structure stay together by the sheer force of their own weight. The New River bridge Today materials like steel ...

Aside from admiring the arch, visitors can climb to the top and take in the Parisian panorama. Most visitors are wowed by the immense size of the structure and recommend ascending to the top for ...