Haven't done many trips outside Europe (though I hope they'll increase once I get the big money lol).
In Germany:
Munich, Berlin, Cologne, Hamburg, Bremen, Stuttgart, Dresden, Leipzig, Rostock and many more.
In France:
Paris (only 3 hours from my place), Provence (Southern France), Normandy (Northern France in case some of you suck at history)
Luxembourg
Belgium (Brussels and North Sea)
United Kingdom (London, Durham, York)
Turkey (Antalya)
Italy (South Tyrol)
Austria (Tyrol)
Switzerland
Probably US next year.