Billions of people today organize their lives around religious teachings and consider a variety of places around the world sacred. We've put together this list of the world's most important holy places. Though necessarily incomplete, these locations are intangible cultural treasures. These are nine of the most important religious sites on Earth.
When fire tore through Notre-Dame Cathedral in the heart of Paris, centuries of history that had survived revolution, two world wars, and natural disasters was swept from existence. It was a reminder that our most precious constructions can vanish before our eyes. Here is a look at 11 of the world's most majestic cathedrals and why you shouldn't wait to see them.