Copenhagen.
Following the next09 conference last week, I've now made my way to Copenhagen, to attend the COST298 conference with the somewhat unwieldy title "The Good, the Bad, and the Challenging" - don't hold that against it, though: the actual theme of the conference (and of the COST298 EU research programme) is participation in the broadband society, so it should be interesting. (The two-volume proceedings alone are going to seriously push my luggage weight over the edge on the flight back.) Also, erm, interesting is the choice of location, at Aalborg University's campus in Ballerup on the outskirts of Copenhagen, almost an hour's metro ride out of town - I must say I much preferred the IT University campus, just cross from the city centre, where we held the AoIR conference last year.