Famous locomotives side by side in County Durham

The 'big six' Class A4 locomotives side by side in County Durham Credit: ITV News Tyne Tees

Six of the world's most famous locomotives have gone on display together in County Durham.

They are on show for the next week at Locomotion, the National Railway Museum at Shildon.

This is the culmination of events to mark Mallard's record-breaking run Credit: ITV News Tyne Tees

The engine Mallard is taking pride of place, at the conclusion of events to mark the 75th anniversary of its record breaking run.

In 1938 Mallard became the world's fastest steam locomotive when it reached a speed of 126 miles an hour on the East Coast Main Line.

Mallard was reunited with its five sister locomotives, known as the A4 Class, as part of the anniversary commemorations.

Two of the engines were brought from North America and will shortly be returning home at the end of their two year UK visit.

The event is being called the 'Great Goodbye' and will continue until 23rd February 2014.