(More or less)German who traveled to almost all countries of the EU/Europe: Italy with Romania being a close contender.

The combination of mountains and sea always gets me, but Italy wins by having those two combined more closely and the food being a slight bit more refined. The Danube Delta always beats the Po Delta,but both are still phantastic. Finland and Portugal are Nr. 3 and 4 on my list.

Austria is also nice, depending on the region. Oberösterreich and Kärnten can bite my shiny metall ass, but Vienna, Niederösterreich, Tirol, Vorarlberg are nice.

For some reason Iceland, Denmark and the Netherland are simply not my thing without me being able to describe why - I did not not enjoy them. But… They were always kind of “unmemorable”, maybe to easy, to similar to Germany, I don’t know.