Like many other people, as a kid, I loved playing in bouncy castles and other inflatable structures. Now, architects are beginning to use this unusual material and structure to design interesting works of art and structures to explore. An example I particularly liked is the concert hall below, which looks to me like a misshapen donut.
While these structures look interesting and almost surreal in their scale and design, they also serve practical applications like being relatively affordable and modular structures to set up on Mars and other extraterrestrial environments for potential human inhabitance. I look forward to seeing how the development of these unique structures continues and would recommend reading more about them here: https://www.cnn.com/style/article/bubble-architecture-bubbletecture-inflatable-design/index.html