​​To claim the title of World's Largest Mailbox, this structure had to be fully functional. As a working mailbox, guests have the opportunity to climb the stairs inside and send a letter of their own! There is also a fully functioning red flag that goes up when letters or postcards are mailed from the Mailbox. If you are looking for a great shot for your vacation album, then this is the place for you. Not only can your crew take a picture of you from down below, but you have a great view of Casey from up above.​