Celebrity Cruises is a cruise line which was founded in 1988 by the Greece-based Chandris Group. In 1997, Celebrity Cruises Ltd. merged with Royal Caribbean Cruise Line to form Royal Caribbean Cruises Ltd., and has been a wholly owned subsidiary of the latter since then. The company has its headquarters in Miami, Florida. Celebrity's signature logo is an "Χ" displayed on the funnel of Celebrity ships, and is the Greek letter chi, for "Chandris".