I used to love sitting in the solarium playing cards. I think a sunroom/conservatory is a great place to relax. I think it would be awesome to have one that's so sunny I could grow plants there, like the greenhouse at the Chocolate Museum.
If you get a chance to visit Istanbul city dont forget to go and see those reflective stones. People named this as The Stone Mirror. In this picture the way the stone mirror reflected that building really amazes me. Definitely want to get there one day!