Found this cute little boutique while walking around in Athens near the Monastiraki Square. It's called "SHOP" in Ermou St. 112A, Athens (0030-2103231683). Two stories with lots of great designer stuff (women and men's clothing, jewelry, accessories, shoes and bags) from Twenty8Twelve, McQ by Alexander McQueen, Ted Baker, and many other international designer brands as well as amazing pieces by local designers.
For all you fashionista out there, put this on your shopping to-go list when you come to Athens. Not far from the shop, there's a gelato bar.. delish!