Expedition Unknown (2015) is a Documentary, Reality, Action & Adventure series that follows the adventures of Josh Gates as he investigates unsolved iconic stories across the globe. Currently, you can watch Expedition Unknown on Hulu, HBO Max, HBO Max Amazon Channel, Discovery+ Amazon Channel. Streaming availability may vary by country and platform over time. It has a user rating of 8.0 out of 10 from 70 votes. Fans of documentary series may also want to explore similar titles below.