- The queen of England does not carry a passport, but the Pope always carries Vatican City Passport #1
- A Danish passport allows visa-free travel to 169 countries, the most of any passport
- One of the most expensive in the world, even after the price was halved in 2010, a Turkish passport costs more than $250
- U.S. citizens in California, New York, New Jersey, and Massachusetts are most likely to have passports
- World Passports, issued by the World Service Authority, are written in 7 languages: English, French, Spanish, Russian, Arabic, Chinese, and Esperanto
- In 1998 Malaysia became the first nation to introduce biometric passports
