The end of March marks the peak bloom of cherry blossom trees in Washington, D.C., and the LEGO Discovery Center is celebrating the occasion by adding its own decorations to its miniature replica of the nation’s capital.

The LEGO cherry blossom trees returned to the center’s Washington, D.C., display from last year, with an extra 20 trees made from 12,200 LEGO bricks being added. The whole project took Andrew Litterst, the center’s master model builder, over 45 hours to complete.