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Greg checks out Archimedes' plan for a death ray in 214BC, while Fran investigates 'déjà vu'.
Fran finds out how 157 people have fallen from planes and survived without parachutes since 1900.
Will moles, cockroaches or alien bacteria inherit Earth post nuclear fallout?
Greg looks at a space hotel that lets guests see 16 sunsets and sunrises in 24 hours.
Dom smashes Viking myths when he finds out more about them, such as having their own parliament.
Fran mixes a few anvils with a little gunpowder and Dom investigates Leif Erikson.
Did you know the vending machine was invented in the 1st century AD?
Fran investigates a Scottish island that had to be quarantined for 48 years.
Dom finds out which German spy was an inspiration for Bond, James Bond.
Greg drops into a volcano to discover they explode with 24 megatons of thermal energy.
