Introducing Spain

Montenegro (Montenegrin: Crna Gora, Црна Гора) is a Balkan country on the Adriatic Sea with a population of 680,000 people. It gained independence in 2006, making it one of Europe's newest countries. Montenegro's infrastructure has significantly improved since independence, with numerous five-star hotels, glitzy new cities, and investments in highways, power, water, and sanitary pipelines.

Croatia is a Mediterranean country that bridges Central Europe and the Balkans. The main language is Croatian, a Slavic language similar to Serbian and Bosnian.

Probably one of the most pristine medieval cities in the whole of Europe is Tallinn, located within Estonia. The Old Town section is a World Heritage site, and the city...