Holland America Line’s Nieuw Amsterdam launched in 2010 as the fourth ship to be given this illustrious name by the line — a tradition that goes back more than 100 years. The 2,106-guest ship, the second Signature-Class vessel after 2008’s Eurodam, has a classic steamliner feel and sails the Caribbean in cool months before repositioning to Alaska or the Mediterranean in warmer ones. A 2017 refurbishment kept the sophisticated New York City-inspired décor while adding some polish and several fun new spaces.