Hoxton 

Great installation from cinimod studios. The ball was filled with LEDs that were controlled by guests across the park. Check out the link for more info. I think the actual sculpture of this is what makes it beautiful, not the LEDs inside.

unchart:

Wow, this is easily the best execution of one of these that I’ve seen yet. Love the fanfare when the door opens.

Moment Factory - La Vitrine - Permanent Interactive LED wall (via @sergethew)

Déplacements, Manu Braun, 2006