A confrontational Parliament?

Why are the chambers of the House of Commons and the House of Lords laid out as they are?

Why is this such a confrontational Parliament?

The architectural historian, Dan Cruickshank, says it's all to do with history and the legacy of one particular chapel.

Here, he talks to the BBC's parliamentary correspondent, Sean Curran, as they walk along Parliament's 'axis of power'.

That's the line from the monarch's throne in the House of Lords to the Speaker's chair in the House of Commons.

Sean Curran and Susan Hulme present a special one-hour edition of Today in Parliament for Democracy Day on 20 January 2015.