See
Londsa Castle
Kasteli Agios Nikolaos
Ruins of a Byzantine fortress that are a prominent landmark in the oldest part of town. It offers fantastic sunset views in the evening. The history of the castle dates back to the 15th century, and it survived for almost 600 years. Unfortunately, like many other structures on Santorini, it was largely levelled by the 1956 earthquake. Only the base of a tower and facade remain of what was once an impressive defensive structure built to protect the island from pirate attacks.
- Hours
- Open now · open 24 hours
Weekly hours
Sun Open 24 hours Mon Open 24 hours Tue Open 24 hours Wed Open 24 hours Thu Open 24 hours Fri Open 24 hours Sat Open 24 hours - Price
- Free
Listing from Wikivoyage: Oia (Greece), CC BY-SA 4.0.
Updated 28 Sept 2026. Something wrong? Tell us.