Legoland Discovery Center Boston groundbreaking

Lego bricks poured from a dump truck in Somerville at the official groundbreaking of Legoland Discovery Center Boston at Assembly Row. The attraction will feature interactive experiences and displays geared toward children age 3-10. It is expected to open in May 2014.

State Senator Patricia Jehlen (left) wielded a shovel of Legos at the groundbreaking ceremony. She represents the Second Middlesex District, which includes Somerville, where the discovery center will open.

Dignitaries, including Somerville Mayor Joseph A. Curatone (left), stood with Bertie the Lego man at the groundbreaking ceremony.

Students from the St. Catherine of Genoa School lined up with shovels and hats.

The students shoveled a pile of Lego blocks.

Somerville Mayor Joseph Curtatone dipped his hand into a pool of Lego blocks as he talked with kids.

A rendering showed the future exterior of the Legoland Discovery Center.

One rendering revealed the future display for Olivia’s Playhouse, a life-size version of a Lego toy package.

Another rendering showed a different projection for an interior space.