Africa's largest natural arch is located deep in the remote Sahara Desert, on the Ennedi Plateau in Chad, and reaching it is ...

This reinforced concrete open-spandrel arch bridge opened in 1932 ... not destroyed or damaged during the Second World War. The area around the bridge is famous for containing many high-end ...

Did you know Pennsylvania is home to the longest stone arch bridge in the world? Built by the Pennsylvania Railroad, the Rockville Bridge opened on March 20, 1902. It replaced an iron bridge built ...

Lovingly called the "Coat Hanger" by locals, this towering structure is the world's largest steel arch bridge. And while you can capture stunning pictures of the bridge from one of Sydney Harbour ...