From left: Anthony Brooks, Mats Valk, and Feliks Zemdegs in Beyond Rubik's Cube at Liberty Science Center.

The Rubik’s Cube US National Championships take place this weekend at LSC, and the world’s best are already gathering in New Jersey to check out the host venue.

Feliks Zemdegs and Mats Valk, two of the fastest speedcubers in the world, stopped by LSC today to see Beyond Rubik’s Cube and hang out with speedcuber-in-residence, Anthony Brooks.