Measuring 15.72 m (51 ft 6 in) in length, 12.33 m (40 ft 5 in) in width and 8.20 m (26 ft 10 in) in height, the world’s biggest four-legged walking robot was unleashed by electronics maker Zollner Elektronik AG in Zandt, Germany, on 27 September 2012.

The mighty mechatronic beast is radio remote-controlled and was created to feature in Germany’s longest-running folk play Drachenstich.

Fanny – aka Project Tradinno (a portmanteau of “tradition” and “innovation”) – is an 11-tonne (24,250-lb) fire-breathing dragon powered by a 2.0-litre turbo diesel engine with an incredible 140 hp

Each of Fanny's legs has seven degrees of motion, which means it can move laterally and walk around corners, while her wings are sheathed in polyurethane and reinforced plastic. Its main function is to act in a play, so veins are filled with 21 gallons of stage blood, while 24 pounds of liquid gas allow it to spit fire.

A spokesman from Zollner Elektronik AG said: 'Realising a radio remote-controlled, outdoor-capable four-legged robot walking robot in unheard-of dimensions, was what really motivated the developers and designers."

The Guinness World Records 2014 book edition is on sale now at all major retailers. Find a full list here. Three iBooks are also available now at the iTunes store: "Awesome Animals," (free download), "Colossal Constructions," and "Incredible People."

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