The big ‘Dance’

There’s a new public artwork in town. “Modern Dance,’’ a 26-foot-high abstract sculpture by Boston artist Jacob Kulin, was officially unveiled on the Wharf District Park portion of the Rose Fitzgerald Kennedy Greenway yesterday, as part of the “Bright Lights for Winter Nights’’ celebration. The free-standing wood and steel work was crafted to resemble a human body in motion, according to Kulin, who said the sculpture’s main rectangular beam is made of old-growth cedar reclaimed specifically to bring a piece of Boston’s history to the Greenway. “Modern Dance’’ replaces the 35-foot sculpture “Botanica,’’ by George Sherwood, which had been on display since July 2009.