Yesterday, millions of people all over the world watched as one of the most iconic buildings in history went up in flames. Today, they sprung into action.

Whether you'd never seen the cathedral in person or had walked by it everyday of your life, it was a devastating event to witness. And while many are still in mourning over the loss of Notre Dame's grand spire, many others are already making a plan to restore the cathedral to its former glory.

Unsurprisingly, the President of France, Emmanuel Macron, ever the activist, was one of the first to pledge himself to the task. "This Notre-Dame Cathedral, we will rebuild it. All together. This is part of our French destiny. I am committed to this: from tomorrow a national subscription will be launched, and far beyond our borders," he wrote on Twitter (translated into English).