LEGOLAND® Discovery Center Boston visits Stone Zoo for a live-build of a sloth! Lucky Stone Zoo guests and LEGO enthusiasts alike will be able to watch in wonder as LEGOLAND Discovery Center Boston’s Master Model Builder, Megan Amaral creates a life-size sloth out of LEGO bricks. Guests will be able to join in on the LEGO fun and learn more about the Zoo’s Linne’s two-toed sloths, Lunesta and Nero, throughout the day. Linne’s two-toed sloths are large, furry mammals that live in trees and are found in the forests of South America.