Part Carmen San Diego, part penpal, part goodie box- the Adventurous Mailbox program seems like a fun time all-around. You can chose from a series of places like Finland or Greece or Peru and they send you "a mysterious package from abroad, full of adventure, intrigue, and cultural exploration through eight captivating books."
These books follow the adventures of 12-year-old Crameye Junker and his family. Each book is written as a letter to the reader, introducing a featured country’s culture, language, mythology, and more. There's also a kid's online "secret" online community aspect as well. What a cool way to learn more about other places through the mail! I think it all sounds pretty neat. If you've tried it, or give it a try, let us know how you like it.