Cutty Sark
The two prime attractions at Greenwich are the beautiful Christopher Wren-built observatory and the clipper ship, Cutty Sark. I don't know much about the Cutty Sark other than the fact that it was one of the last and fastest tri-masted sailing ships built to compete with the steamships of the 19th Century. That and the fact that it is also the name of a rather groaty tasting Scotch.