In the last three weeks, Jay-Brant Construction has had a team of 10 stone masons working on the towers, one of which was constructed in a circle and the second of which has taken the shape of an ellipse.

The structures, which are around three stories high, will eventually house the permanent displays that will bookend the highly interactive exhibit space.. The official name of the 37,000-square-foot facility will be announced in the next few weeks, said Poppy Benson, the outdoor recreation planner for the Alaska Maritime National Wildlife Refuge.