Royal Caribbean's record-breaking Harmony of the Seas this week is kicking off its first sailings out of Barcelona -- its home for the summer .
The 16-deck-high vessel on Sunday begins a five-month-long series of seven-night voyages from the city to France and Italy. It follows a one-time, five-night sailing from Barcelona that began Wednesday and several inaugural voyages out of Southampton, England.
At 226,963 tons, Harmony is the largest cruise ship ever, a floating mega-resort with three main pool areas, a water slide complex, an adults-only solarium, an ice skating rink, two rock climbing walls, a basketball court and a mall-like indoor promenade with shops, bars and eateries. It was unveiled last month in
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