The Molyvos Kastro is a 13th-century, Byzantine-era castle with polygonal fortifications capped by 10 majestic towers. The second largest castle on the island, it has been remarkably well-preserved, and the views are exquisite. Though you can take a taxi from town, the best approach is to walk up the streets of Molyvos, which are shaded from the sun with wisteria vines. Stop in at one of the two small cafés at the top of the hill for a cold drink, and spend an hour or two wandering the extensive castle grounds, which are dotted with playful Turkish fountains and original stone buildings. Tickets are around $3, with children admitted free.
Kastro, Molyvos, Greece