The competition to improve the grounds and urban connectivity at the St. Louis Arch site has attracted attention from some major talents in architecture, landscape, and engineering. The list of competitors has been trimmed to five: the Michael Van Valkenburgh-led team, the Weiss/Manfredi team, SOM Chicago/Hargreaves/BIG, the Behnisch-led team, and PWP/Foster + Partners/Civitas. The winner will be announced in late September.