Be them Scandinavian innovations or indigenous rope walkways in Peru, eye-catching designs or skyline staples, our world would look very different without the bridges that connect our communities. Humans (with help from Mother Nature) have been figuring out how to traverse rivers, valleys, and rainforests for centuries, leading to some gorgeous examples of historical and contemporary architecture. We know, we know – there are literally millions of bridges in the world, and so many are stunners.