what are the best european cruises?
['#1. Seven Seas Explorer. Regent Seven Seas Cruises. ... ', '#2. Viking Sun. Viking Ocean Cruises. ... ', '#2. Seabourn Odyssey. Seabourn Cruise Line. ... ', '#4. Celebrity Reflection. Celebrity Cruises. ... ', '#4. Silver Spirit. Silversea Cruises. ... ', '#4. Viking Sea. Viking Ocean Cruises. ... ', '#4. Viking Star. Viking Ocean Cruises. ... ', '#4. Viking Sky. Viking Ocean Cruises.']