You do know there was ever only one of those?
Nope.
Look up the Wind Spirit, one of the largest 6 masted sail boats that cruise the Caribbean and Meditation.
If you need more info, I just happen to have a bag full of poker chips in a bag from the ship in my office.
http://www.windstarcruises.com/windspirit-yacht.aspx
Been on it at least a few times.