The National Geographic : Treasures of the Earth exhibit , which includes three areas , is located on the Lower Level of the museum .
The National Geographic : Treasures of the Earth exhibit , which includes three areas , is was first opened on June 11 , 2011 .
The National Geographic : Treasures of the Earth exhibit , which includes three areas , is located on the Lower Level of the museum and was first opened on June 11 , 2011 .