The seventh-grader from Salmon Arm, B.C., broke the record set by an Arizona man who stacked 485 Jenga blocks over a single vertical wood block.

Meindert De Boer, of Dresden, was able to stack 3,348 Jenga blocks on a single verticle block, during an attempt to break the current Guinness World Record of 1,840 blocks. He made the attempt on ...