A new gateway arch rises above the 1100 block of Hamilton Street on Thursday, Feb. 5, 2026, in Allentown. The arch, part of efforts to spruce up the downtown area, is a little more than 19 feet high.
The Gateway Arch in St. Louis — America’s smallest national park and tallest human-built monument — turns 60 on Oct. 28. The Gateway Arch is 75 feet taller than the Washington Monument and over twice ...