Built in Italy in 2007, the decor of this 3,000-passenger Concordia-class ship is inspired by the gods and goddesses of ancient Roman and Greek mythology. Although part of the Miami-based Carnival Corporation, Costa Serena rocked a distinctly European vibe for years, with announcements made not only in Italian and English but also in Spanish, French, German, and a handful of other languages — reflecting the multicultural makeup of its passengers. That all changed in April 2015 when the line moved Costa Serena to a new home port in Shanghai to cater to the Chinese market.