As children, most of us dreamed of a safe haven up in the sky, where our imaginations could roam freely and in secret. However, some of us have grown up and are still intrigued by these awesome structures. Additionally, some cultures don’t see these as a childhood privilege, but as a part of every-day living, such as the New Guinean Korowai tribe. Some countries have even structured these to be for dining or sight seeing. Here, we have gathered a compilation of some of the best tree-houses around the world that will ignite some childhood nostalgia in you. Let us know which one was your favorite, or if you ever had a tree-house yourself.