London's City Hall A 500-metre (1,640 ft) helical walkway, reminiscent of that in New York's Solomon R. Guggenheim Museum, ascends the full height of the building. At the top of the ten-story building is an exhibition and meeting space called "London's Living Room", with an open viewing deck which is occasionally open to the public. http://en.wikipedia.org/wiki/City_Hall_(London)
Kimsooja’s Room of Rainbows. South Korean-born artist Kimsooja has had a long, intense career full of installations, performances, photography, videos and site-specific project. This particular installation from 2006 is at the Palace de Cristal in Madrid.
Gosford House is the family seat of the Charteris family & is situated in East Lothian, Scotland. Gosford was built by the 7th Earl of Wemyss between 1790 & 1800. It was built to plans by the architect Robert Adam (1728–1792), who died before the house was completed. The 8th Earl knocked down the wings, and his grandson, the 10th Earl, rebuilt them in 1891 to designs by the architect William Young. The south wing contains the marble hall. Gosford is built in the neoclassical style.