In this video, explore the construction of the Gateway Arch through detailed 3D animation.

ST. LOUIS — A floor of the historic Old Post Office in downtown St. Louis is turning into a Gateway Arch Research Center that is set to open on Oct. 1. The Gateway Arch National Park’s museum ...

The mural, which will be displayed in the Gateway Arch Research Center, is set to be 22 feet wide and 6 feet tall. The competition aims to inspire and uplift through art that tells meaningful ...

Local News Nonprofit leader envisions Gateway Arch grounds crossing Mississippi River in coming decades The expansion could take decades and requires congressional support from Illinois.

If you’ve driven near downtown St. Louis at night, and the 630-foot monument isn’t shining in the skyline, you might be wondering why. According to officials at the Gateway Arch, there … ...

Extreme heat is causing pavement to buckle along Lenor K. Sullivan Boulevard, right in front of the steps to the Gateway Arch. No word on a fix from city officials.

The massive CityArchRiver project, which capped I-44 to connect the Gateway Arch to downtown, took five years to complete and cost $380 million.