🎉 Happy 60th Anniversary @gatewayarchstl! 👏🎂 Since 1965, this iconic landmark has graced our skyline and symbolized the spirit of St. Louis. Standing tall as the largest man-made monument in the smallest national park, the Arch rises 630 feet tall and 630 feet wide, a perfect, awe-inspiring curve of stainless steel. 🤗 On October 28, 1965, the final piece of this magnificent monument was put into place and the rest is history. ✨ To celebrate 60 years, join the Gateway Arch’s anniversary festi