The town of Zakynthos, on the Ionian island of the same name, curves around a scenic bay and melds into the surrounding fertile plains. While Zakynthos is modern, some of the architecture bears a Venetian influence, especially its fortress and historic Saint Mark's Square. Many of the icons and frescoes salvaged from the island's medieval churches are now exhibited in the Byzantine Museum. Be sure to leave time for the beaches and look for Caretta-caretta sea turtles, as Zakynthos is their primary nesting ground.