The Baltic Sea coastline and its islands (such as Rügen), the cities, as well as the Mecklenburg Lake District are very popular with tourists, making the state one of Germany's leading tourist destinations. Moreover, the universities of Rostock (est. 1419) and Greifswald (est. 1456) are amongst the oldest in Europe. This German Bundesland is also one of the least densely populated federal-states in contemporary Germany with abundant nature and farmland dotting the bucolic landscape.