Visitors to St. Louis are often surprised to discover that the famous Arch, which defines the city’s downtown skyline, really isn’t all that accessible, at least on foot. Now, the city is considering several plans to establish a downtown connection to the Arch for pedestrians and tourists. Standing in the way are an interstate highway and a major city boulevard. The plans are all architecturally pleasing, and the final decision will likely come down to cost vs. convenience.