Regent Seven Seas Cruises Announces 30-Country, 117-Night Voyage For 2021 To Explore Many Corners on Earth. Clear your calendar for the first half of 2021 for this journey. World Cruise Visits 56 UNESCO World Heritage Sites. Regent Seven Seas Cruises just announced the itinerary for its 2021 World Cruise and it’s epic, to say the least. On … Continue reading World Cruise Visits 56 UNESCO World Heritage Sites