For the challenge this week the two teams go in search of a car from the 60s. Both teams find genuine motoring icons.
This episode an air cannon that is able to breach brick walls, up against Line-X coating that is used on buildings to mitigate bomb blasts.
Standing taller than the Eiffel Tower, Dubai's Burj Al Arab is an architectural icon of the 21st Century. Witness the birth of this historic triumph.
Kaktovik, Barter Island, Alaska, USA: A polar bear in Kaktovik. This image is from Die Trying.National Geographic Channels/Jason Mayfield
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