How many cruise ships had Darth Vader's mask sitting on top of them. Actually three -- Sovereign of the Seas and her sisters Monarch and
Majesty of the Seas. Song of America was the first ship to take the funnel-mounted Viking Crown Lounge to a full 360 degrees in 1982.
But the version on the three original megaships really looked like Darth Vader. Especially in crumby night photos.

Entered service 1989 | 74,000 Gross Tons / 874 feet long