This sculpture, made entirely of Lego bricks by artist Nathan Sawaya for an exhibit at the Carnegie Science Center, was inspired by the Three Sisters Bridges in Pittsburgh. The creation contains 12,380 Lego bricks.

PITTSBURGH — World-renowned Lego artist Nathan Sawaya on Friday unveiled a new sculpture he created just for The Art of the Brick exhibition at the Carnegie Science Center.

The sculpture, made entirely of Lego bricks, was inspired by the Three Sisters Bridges — the Roberto Clemente, Andy Warhol and Rachel Carson bridges in Pittsburgh. The creation measures 45 by 46 by 67 inches and contains 12,380 Lego bricks.

The Art of the Brick, which is the world’s largest display of Lego art, opened Saturday at the Science Center.

It features 100 creative sculptures plus a Science of the Brick hands-on area with 17 activity tables with eight different brick building challenges and interactives, plus free-play and demonstration areas. Activities include Tilt Maze, Art and Architecture, Six Brix, and Describe It.

The Art of the Brick is on display through Jan. 7.

It is the inaugural exhibition for the new Scaife Exhibit Gallery, located inside Science Center’s new PPG Science Pavilion, a 48,000-square-foot, $33 million expansion.

For more information, visit CarnegieScienceCenter.org or call 412-237-3400.