Amsterdam is awesome, the people are friendly and they've got those "special" coffee shop and "houses" of pleasures
Paris is cool too for a romantic gateway as long as you keep to the touristy parts.
Rome is pretty cool if you want to immerse yourself in Roman ruins and if you like expresso.
The French Riviera is also pretty good, but avoid it during summers, it's quite crowded to say the least.
I am PussyMan and I approve this touristic public service annoncement
