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.

Dom slips into spandex to find what it takes to be a hero and whether moles, cockroaches or alien bacteria will 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 they had their own parliament, didn't wear horned helmets and followed a strict grooming routine.

Fran mixes a few anvils with a little gunpowder and gets a big bang, and Dom finds out that Columbus may have been beaten by almost 500 years to America by Viking hero Leif Erikson.

Did you know the vending machine was invented in the 1st century AD, that 10,000 objects are spinning through space right now that could smash into Earth, or that you can lift a car with a vacuum cleaner?

Dom drops to the centre of the Earth to find gold, Fran investigates a Scottish island that had to be quarantined for 48 years after germ warfare testing and Greg finds the answer to our fuel crisis with a Marty McFly style hoverboard.

Greg finds the largest mountain range on the planet at the bottom of the ocean, and Dom finds out which German spy was an inspiration for Bond, James Bond.

Roman gladiators had around a 1 in 10 chance of survival, Dom discovers why a thumbs-up from the emperor actually meant they were for the chop. Greg drops into a volcano to discover they explode with 24 megatons of thermal energy.