[VeniVidiVici]

I'm surprised no one has mentioned Boston yet. One of the largest college town's in the U.S. and people come from all over the world to attend school here. Go to any club and you can find girls from all over the world. Quality is high and all are wealthy and intelligent. Winner in my book

[UnW]

London, New York

[Mango444]

Tenerife - you will find girls from all over europe here and the rest. Amazing place for getting flags.

LOndon as people have said a million times.

Dubai - thanks to emirates airline, think they have about 150 nationaliites working for them.

Any party hostels in cities like budapest, prague, malaga etc

Cairns - australia

Moving to a big city like sydney, melbourne, london and opening up a couch on couchsurfing even if its just for 2 months will have amazing effects on your flag count.

[michaelm]

or, go to any local mall jewellery place or kiosk. They're typically bored, and game for hookups, starting at the foodcourt.