Time Team S08-E10 Bridgenorth, Shropshire

A 70-feet-tall Norman tower and some other stonework is all that's left of a great castle built exactly 900 years ago and around which grew up the town of Bridgnorth in Shropshire.

The castle was occupied for around five centuries, surviving at least four lengthy sieges until finally it fell to Cromwell's army in the English Civil War.

He left it much as it is today, leaning at an angle of 15 degrees ¿ three times more than the famous leaning tower of Pisa. The rest of it is gone - destroyed or plundered - along with all of the town's early records.

The people of Bridgnorth asked Time Team to try to paint a picture of what it might have looked like in its heyday.