The late Renaissance St Peter's Basilica is an iconic landmark of the Vatican City, a monumental structure that the likes of Michelangelo helped bring into existence. Today, the basilica is open to visitors wishing to explore its inside naves and chapels and see works of art by great masters such as Raphael and Bernini. While here, don't miss out on climbing to the top of the dome, where the stunning view of St Peter's Square awaits you.

Once the temporary retreat and later home to decorated Roman Emperor Hadrian, Villa Adriana dates back millennia when it was conceived as an 'ideal city' with baths, pools, fountains and lush gardens. The structure combined elements of Greek, Roman, and Egyptian influences. Since 1999, Villa Adriana belongs on the UNESCO list of World Heritage Sites.

A picturesque bay tucked among precipitous cliffs, Amoudi Bay is an old fishing port that can be reached from Oia. Wonderfully decorated taverns are squeezed on the seafront, and there is a great number of traditional eateries to choose from. Amoudi Bay is also blessed with a peaceful beach, far from the hustle and bustle of the holiday resorts.

Venetian rule in Santorini extended from 1207 to 1580 and the last vestiges of this historical period live in the castles that dot the entire island. Five fortresses can be found in Santorini in Oia, Pyrgos, Emporio, Akrotiri, and Skaros, which have been partly demolished by the earthquakes that shook the island in the 15th and 16th centuries. Skaros is probably the most important and well-preserved among the five castles, built on the peak of the namesake rock to protect the village from pirate attacks. The ruins of the once magnificent fortress can be reached on foot from Agios Georgios church in Imerovigli, connected to Skaros by a 0,5km walking trail and a long stairway.