Le Temple du Marais "Eglise verte" means "green church".
Background: 🈶 ⛪ → 🌿 → 📧 In the recent decade, organizations are replacing courrier with email. The reason is two-folded. 🌿 First, the later is more environmentally-friendly. 📨 Second, the later delivers the content to the recipient quick as a flash.
📧 📎 When one sends an email, one sometimes wants to attach a file to an email. If one has to sign a paper document and send it by email, then one will probably need a scanner.