o_xenos wrote:The taxi suggestion is good. If you do a Google search on 'taxi tour athens', you'll get a number of hits to research. Some of these taxi hosts are quite professional and they take pride in showing their city. The travel agencies and most hotels all offer day tours of Athens and surrounding areas (Sounion, Delphi, etc) by bus, but you won't find anything very personalized. If you're by yourself, however, you may like the convenience of being with a group.