The iconic Eads Bridge which spans the Mississippi River was completed by James B. Eads in 1874. The bridge enjoyed many firsts to include the world’s first all-steel construction as well as becoming the longest arch bridge in the world. To instill confidence of its sturdiness, builders led elephants across the bridge to the cheers of crowds. Today, this St Louis landmark resides on the National Register of Historic Places. On this evening, high clouds muted the sunset colors which encouraged the blue hour hues to take to the sky, while the warm glow of Laclede's Landing and the new completed Gateway Arch grounds occupy the distant shore.