The Wheel of Time season 3, episode 4 sees Rand al'Thor walk between the glass columns of Rhuidean - but what are they, and ...

Offering a highly sculptural visual, this feature disguises structural columns as well as hiding a ... All feature built-in ...

Once it gets to the base, the horizontal force still has to have something to press against: the heavy outer columns (light blue in model A). Once these have countered the weight of the keystone (and ...