Tecnopolis (Gatzi) is one of my favorite spots in Athens. There are lots of cafes, bars and restaurants. And is food the leading in this post. Sardelles is a seafood restaurant. Simple, marvelous and healthy food. Feta cheese, boiled vegetables and octopus, skordaia (mash potatoes with garlic), olive oil and big squid. At the end homemade lemonade for those hot summer nights.