Factomania

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.