These days, the mail can seem a bit antiquated, what with emails and Skype chats. When was the last time you sent something off that wasn’t your Netflix? Flickr user csuspect provides a feeling of nostalgia for sending and receiving mail with this close up of intricately decorated P.O. boxes. (EXIF.)

For an in-depth history of the Postal Service, take a trip to the National Postal Museum this weekend. While there, catch The Future is Now, a talk on postal innovations that were too futuristic for their time.