The Most Powerful Passport in the World, and Other Things You Don't Know About Your Little Travel Booklet
by Emily Long from Lifehacker on (#5T1EX)
Of course you need a passport to cross international borders, but they're more than a required travel document: They keep track of your globetrotting, and there's nuance to both the design of your passport booklet and the access it provides. Here are 12 interesting facts you may not know about your passport.