- 14th-c. castle of the Knights Hospitaller of the Order of St John. It is on Castello Rosso, a hill of red rock, which gave the island its current name.
- The Town Hall (Kava area), Nea Agora and Entefktirio (Agios Georgios area) which housed a kindergarten in the early 20th century.
- Archaeological – Diachroniko Museum of Kastellorizo, housed at “Konaki”, a historic, listed building. The gallery dedicated to ancient Megisti is particularly interesting. Items referring to the period from the early Christian years until the post-byzantine times are on display in other galleries.
- 4th-century BC temple-like Lycian tomb below the castle.
- Mandraki, a district with a small, picturesque harbour east of the village centre.
- Chorafia, where the 1903 Santrapeia Urban School is located as well as Agios Georgios church (1903).
- Agios Konstantinos and Agia Eleni church, the island’s patron saints. It was built in 1835 and its interior is supported by ten, monolithic granite pillars which were transported from the temple of Apollo in Patara, ancient Lycia.
- Kastellorizo Historical Collection, housed in a mosque at the entrance of the port, in Kavos area. Exhibits include documents and photographic material referring to the modern history of the island (19th century – 1948).
- Palaiokastro. It is 2 km away from the village and has remained unaltered since the Byzantine times. Panagia tou Kastrou and Agios Stefanos churches are within the castle grounds. Below this area are acheres, ten cisterns built during the Turkish Occupation.
- Agios Georgios tou Vounou, a fortified monastery affording a marvellous view.
You are not very likely to come across the typical golden Greek beaches of the postcards. Nevertheless, platforms and diving boards will help you enjoy the beautiful and clear waters. Find some at Plakes, Faros, Kavos or, even, at the harbour.
Little boats will take you to the nearby islets, such as Ro, with the little sandy beach, Stroggyli and St George, with the chapel bearing the same name.
But the best is yet to come: Go boating to Galazio Spilaio (Blue Cave), the biggest and most spectacular of all sea caves in Greece.