Legoland Discovery Center set to open in Somerville next week ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Pat Greenhouse/Globe Staff Tessie, a 20-foot-fall giraffe created from a ton of plastic bricks, will welcome visitors to the newest Legoland Discovery Center when it opens May 23 at Assembly Row in Somerville. Pat Greenhouse/Globe Staff The pick-a-brick wall offers a variety of options. Pat Greenhouse/Globe Staff The center is expected to draw Lego-obsessed youngsters from all over New England. Pat Greenhouse/Globe Staff Operations manager Nathan Nicholas watched the pre-show video before entering the Lego Factory Tour. Pat Greenhouse/Globe Staff Marketing manager Kelly Smith followed the directions using a joystick and button in the Lego Factory Tour. Pat Greenhouse/Globe Staff Similar to a theme park, the huge indoor facility covers 44,000 square feet. Pat Greenhouse/Globe Staff It features 11 Lego-themed attractions, from rides to a movie theater with sensory effects. Pat Greenhouse/Globe Staff “It’s a timeless toy,” said Kelly Smith, a spokeswoman for Legoland Discovery Center. Pat Greenhouse/Globe Staff The Somerville center is considered a key anchor tenant of the new $1.5 billion Assembly Row mixed-use development. Yoon S. Byun/Globe staff Ian Coffey won a contest in January to become the Master Model Builder for Legoland. Coffey's winning design was a painting with paint brushes. Lego A Lego replica of Fenway Park.