If you are in a hurry, the best way to get around the center of Athens is with a taxi, which can be flagged down from any street corner.
Taxi fares are still among the cheapest in the world.
The cheaper way is by taking buses and trolleys. The mini buses run through the center of Athens and one is even free. Stadiou St.and connects one from the two major squares of the capital, Omonia and Syntagma. The bus also takes you to the Monastiraki Flea Market and ends up at the Athens Food Market on Athinas St. The other two mini buses, numbers 100 and 200, one must purchase a 150 drachmas bus ticket.