Workers install "Lola" a new public art piece at Union Station in Denver, CO.

DENVER, CO - JANUARY 29: John Baker, owner of Carlson Arts LLC who helped fabricate the sculpture, left, works with Dan Adriens, below right, as the two work on installing a new public art piece titled "Lola" at Union Station on the pedestrian bridge about the commuter rail tracks in Denver, CO on January 29, 2015. "Lola" was created by artist Christian Moeller and was selected out of hundreds of submissions. The sculpture, made mostly of aluminum and steel, stands 24 feet tall.The sculpture was inspired by a Swiss railway clock as well as imagery of a person running alongside a train waving goodbye. Once installed the kinetic structure will always be in motion with the arms moving similar to a pendulum. (Photo By Helen H. Richardson/The Denver Post via Getty Images)