8Stavros Niarchos Foundation Cultural Centre (SNFCC)

What is it? An oasis of Mediterranean greenery.  

Why go? For 170,000 square metres of parkland, complete with playgrounds, gardens, cafés, a striking eco-friendly glass complex (also home to the Greek National Opera), a manmade river, and the National Library of Greece. Plus, there’s a great view of the Acropolis.