Wonderful private museum housed in a beautiful mansion. What's great about the Benaki is that it offers a brilliant overview of Greek history (not just classical) through its collection of artifacts, art works, costumes and furniture.
Koumbari 1 (cnr Vasilissis Sofias)
210-3671000
Nearest metro: Syntagma
www.benaki.gr/
maps.google.co.uk/maps/place?cid=14957132971109921392&q=1+Koumbari&hl=en-GB