Hidden behind one of Whitehall's classical facades can be found a building as old as the Times newspaper, and described as the smallest Grand House in London.
Hidden around a corner on a side street not far from Kings Cross can be found one of Britain's great post-war modernist buildings -- and an amazing staircase.
The ancient Egyptians invented it, the Victorians industrialised it, the Edwardians loved it, and most of us who sat on plywood chairs at school hated it.
There's a small, but interesting display at the moment showing some of the late changes that were made to the Royal Albert Hall during its construction.
