You can spend two months living on Oceania's premium cruise ship for $15,700 per person as it sails to 2 continents

• Premium cruise line Oceania Cruises announced three new one-to-two-month extended cruises.
• The Riviera itineraries are set to sail to Africa and Asia, starting at $4,400 per person for the one-month option.
• Extended sailings — like Royal Caribbean's nine-month Ultimate World Cruise — have captivated travelers.

Travelers who've dreamt of living on a cruise ship could soon try out the lifestyle with a two-month sailing aboard Oceania Cruises' upscale 1,250-guest Riviera.