Steffan Feazell, from Swansea, watches as bi-planes loop and spin through the air during the Celebrate St. Louis airshow front of the Arch to celebrate the Fourth of July in St. Louis on Thursday ...

ST. LOUIS – June 30 marks Arch 630 Day, celebrating the Gateway Arch’s unique dimensions and history in St. Louis. Arch 630 Day honors the historic monument and its dimensions, which stand at ...