Trees growing in the rock walls of Zion National Park

I remember being in college the first time I heard about the Hanging Gardens of Babylon, considered by many to be one of the seven wonders of the ancient world. I pictured these mythic gardens as masterpieces of flowers and foliage that were somehow suspended hundreds of feet in the air. According to ancient texts, though, the gardens weren’t hanging in the literal sense, but only appeared to be floating. This was due to a remarkable product of human ingenuity. Continue reading →