No trip to St. Louis is complete without a visit to its most iconic landmark. Rising 630 feet above the Mississippi River, the Gateway Arch is a striking symbol of the city and a remarkable feat of architecture designed by Eero Saarinen. Take a tram ride to the top for sweeping views of St. Louis and the river, explore the museum beneath the Arch, or simply stroll the surrounding park grounds and take in the view from below. However you experience it, the Arch is a quintessential St. Louis moment.