At 630 feet high and 630 feet wide, St. Louis’ iconic Gateway Arch is the tallest arch in the world and the tallest monument in the Western Hemisphere. This National Historic Landmark was completed in ...

Subscribe Now Last year, NPS adopted a more precise method to estimate visitors in Gateway Arch National Park. The methodology uses location-based mobile device data to track visitors’ movement ...

This national park and its famous arch are dedicated to the country's westward expansion. The stainless steel Gateway Arch – an engineering marvel – was designed and submitted by Eero Saarinen ...

The Gateway Arch is a 630-foot monument located in St ... This historic site is the location of the first major Civil War battle fought west of the Mississippi River. The battle took place ...