If money were no object and I kept a spectacular flat in London as a second or third home, I would decorate it with furniture like this:
The Boxetti furniture collection (beware of the music that starts playing when clicking on the link) by Rolands Landsbergs is a beautiful feat of minimalism. From the product description:
The capability of the modules to be transformed into compactly solid blocks is essential for the design concept in order to obtain an unobstructed and comfortable space – free of uselessness.
When I see designs like this, I really do wish I had that flat in London.