The Airbnb Pavilion at the Great Wall is to be a spectacular and memorable experience for overnight guests, countless visitors, and spectators as well as a global icon of historic significance.   The Great Wall, a gargantuan terrestrial and ancient wonder built to protect a national homeland, is joined with Airbnb, a vast online network that connects people around the world to share hearth and home.   By capturing and conveying the cultural, ecological, and sustainable breadth of this marriage, the Airbnb Pavilion at the Great Wall promises to be one of the first great monuments of the 21st Century.