Some say it looks like a spaceship, or a sci-fi helmet, but whatever it looks like to you, it certainly doesn't look like an opera house. And yet it is one. Here's a look inside the amazing Palau de les Arts Reina Sofía in Valencia, Spain.
Hard, flat surfaces can be an issue when managing the sound of a space. In a combination of aesthetics and acoustics, sections of the rear walls have bowed-out domes to reflect sound away from the listeners.