Photo credit: Representative Cover Image Source: Julia Butterfly Hill, a tree-sitter, 180ft. up on the top of a 1000-yr.-old giant redwood tree. (Photo by Acey Harper/Getty Images) – Array
Photo credit: Representative Cover Image Source: The frigid water of Niagara Falls empties into the frozen Niagara River on the Canadian side of Niagara Falls, Ontario, Canada. (Photo By Raymond Boyd/Getty Images) – Array
