If the country is orange on the map, I was lucky enough to visit it. If it is underlined and written in color, I've been diligent enough to write something about it already so feel free to have a read.
The ones that are just grey - I'm onto it, stay tuned :)
Europe
Austria
Belgium
Bulgaria
Czech Republic
Finland
France
Germany
Iceland
Italy
Monaco
Poland
Romania
Serbia
Slovakia
Slovenia
Spain
Sweden
Switzerland
The Netherlands
Turkey