http://www.marinabaysands.com/sands-skypark.html
https://lightslant.files.wordpress.com/2013/05/dpp_0258_5_6_7v2.jpg
http://buildipedia.com/images/masterformat/Channels/In_Studio/2011.12.05_marina_bay_sands/images_credit_marina_bay_sands/sands_skypark_observation_deck_02.jpg
http://www.archdaily.com/70186/marina-bay-sands-safdie-architects