The oldest surviving part of the Palace of Westminster, Westminster Hall was built by King William II between 1097 and 1099.
It originally had a simpler roof, but a reconstruction by King Richard II in 1394 saw it replaced by an attractive wooden hammer beam roof, with a span of 68ft - making it the largest Mediaeval timber roof in northern Europe.
For centuries the hall served as the principal home to the Courts of Justice, with occasional public and Parliamentary occasions, Coronation banquets and state trials and impeachments, including Guy Fawkes in 1606.
Seen above is the last banquet to be held in Westminster Hall for the coronation of George IV in 1821.
Boasting the largest clearspan medieval roof in England, measuring 20.7 by 73.2 metres (68 by 240 ft), the original roof was constructed with Irish black oak from County Galway and the chestnut roof timberwork was framed in 1395 at Farnham in Surrey.
Looking back towards the entrance.
The raised King's Table at the southern end of Westminster Hall. Find out more in the video below:
Roof detail.
Some bloke in natty clobber giving a guided tour.
Inside Room 18 of the Houses of Parliament, where I was attending a meeting. It smelt rather musty, but you could sure feel the history in the walls.
Heading to the entrance from the King's Table area.
The view from near the entrance to the hall.
Security passes by the exit (with faces blurred for privacy).
Westminster hall
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