Best Cities to Visit in Greece

Athens - 48 Challenges (Things to do) Ios - 7 Challenges (Things to do) Kalampaka - 5 Challenges (Things to do) Milos - 1 Challenges (Things to do) Paros - 3 Challenges (Things to do) Patra - 39 Challenges (Things to do) Thessaloniki - 47 Challenges (Things to do)