Mona Lisa possesses her own personal mailbox at the Louvre

Being a small, heavily guarded painting apparently does not stop you from receiving fan mail. The enigmatic portrait is so fiercely admired that museum staff had to establish a dedicated physical inbox just to handle the onslaught of love letters and bizarre confessions sent by obsessed admirers. People willingly spend actual postage to communicate with a centuries-old piece of canvas that obviously cannot read.