Fall in love with Europe during your cruise aboard Norwegian Sky. Board an electric train in Koper and enjoy a scenic ride to the Dinaric Mountain Range where you'll explore an awe-inspiring subterranean world in the Postojna Cave. Game of Thrones fans will enjoy a tour of Dubrovnik's Old Town where several historic sites were featured in the hit TV show. Then stroll among Santorini's famed, blue-domed roofs and enjoy wine tasting at a scenic, local vineyard. Take a short ferry ride from Mykonos to the island of Delos - the mythological birthplace of Apollo and Artemis and a UNESCO World Heritage Site - and visit ancient ruins.