Oceania's Insignia

(2 p.m. EST) -- Oceania specializes in extra-long world cruises and plans to continue the trend: The line just announced another 180-day world cruise for 2019.

The 684-passenger Insignia will visit 90 destinations in 36 countries with 14 overnights in port during its half-year cruise around the world. The cruise offers a choice of embarkation dates and locations: January 11 in New York, January 14 in Miami or January 30 in Los Angeles. From there, Insignia will sail to Hawaii and the South Pacific, followed by Australia and New Zealand, then Asia, the Holy Land, Mediterranean, Canada/New England and Bermuda.

Oceania will offer a series of free special events ashore, including a tea ceremony and ninja and Kabuki performance in Tokyo; cocktails and dinner at the UNESCO World Heritage site of Old Acre in Jerusalem; and a wine tasting and local dinner at an estate in Bordeaux. Onboard, guest lecturers will speak on art, history and music, with ties to the cruise regions.

Bookings for the 2019 world cruise open on Wednesday, March 1, 2017. World cruise passengers receive an array of perks, including prepaid gratuities, free laundry and medical care, and their choice of OLife Choice perks (72 free shore tours, beverage package or $7,200 shipboard credit per cabin).

Intrigued by a 180-day world cruise? Here's everything you need to know about world cruises and a few reasons to say yes to such as splurge-worthy journey.

--by Erica Silverstein, Senior Editor