This is free and an amazjng little museum.
The Sir John Soane's Museum.
http://www.soane.org/
He was an architect (he designed the Bank of England) and he bought this house in Lincolns Inns Field to live in.
He then bought the ones either side of it, and gradually turned it in to museum for architects to come to learn how to be an architect.
It sounds boring, but is fascinating. It is only a small house so only takes an hour to go round, but it is like no other museum in the world.
Every room has something of interest, and every space on every wall is taken up with statues, pictures and so on.
He built glass domes in the roof to allow shafts of light to flow through the house, and in the basement he has left it slightly dark to give it an eerie feeling.
If you go to the web page and see the option at the top called "View the Museum" you can get a 360 degree panorama of some of the house.
WELL worth a visit.