This in an installation by artist Do Ho Suh. Watching as the team pinned the fabric in place, he told us about his inspiration.

Staircase-III is one of a number of works Suh has made based on his personal memories of architectural spaces, both of his parents' traditional Korean house in Seoul and his own Western-style apartment in New York.

'The space I'm interested in is not only a physical one, but an intangible, metaphorical, and psychological one,' he has said.